Threats and vulnerabilities
Keeping up with the latest threats and vulnerabilities is a battle for any security pro. Get up-to-date information on email threats, nation-state attacks, phishing techniques, ransomware and malware, DDoS attacks, APTs, application vulnerabilities, zero-day exploits, malicious insiders and more.
Top Stories
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News
18 Dec 2024
CISA issues mobile security guidance following China hacks
Following the Salt Typhoon attacks, CISA offers advice to 'highly targeted' individuals, such as using end-to-end encryption and moving away from purely SMS-based MFA. Continue Reading
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Tutorial
18 Dec 2024
How to use the Hydra password-cracking tool
Ethical hackers: Need help brute-forcing passwords? Get started by learning how to use the open source Hydra tool with this step-by-step tutorial and companion video. Continue Reading
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News
01 Jun 2022
Forescout proof-of-concept ransomware attack affects IoT, OT
Forescout's proof of concept showed how an attacker could use an IoT camera to gain access to an enterprise's IT network and then shut down operational technology hardware. Continue Reading
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News
31 May 2022
Microsoft zero day exploited in the wild, workarounds released
A zero-day flaw in the Microsoft Support Diagnostic Tool has already been exploited in the wild. No patch is available yet, but Microsoft released temporary mitigations. Continue Reading
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Tip
26 May 2022
Top 4 source code security best practices
Software supply chain attacks are on the rise. Follow these source code best practices to protect both in-house and third-party code. Continue Reading
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Feature
26 May 2022
8 ways to avoid NFT scams
People and businesses are turning to NFTs to make money, trade collectibles and use as promotions. But scams are also trying to trick people and businesses out of money. Continue Reading
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News
26 May 2022
'Pantsdown' BMC vulnerability still present in Quanta servers
Eclypsium found that a critical security flaw first disclosed in 2019 remains exposed in many internet-facing servers, leaving networks at risk for remote code execution attacks. Continue Reading
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News
25 May 2022
Verizon DBIR: Stolen credentials led to nearly 50% of attacks
The Verizon 2022 Data Breach Investigations Report revealed enterprises' ongoing struggle with securing credentials and avoiding common mistakes such as misconfigurations. Continue Reading
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Tip
25 May 2022
Prepare for deepfake phishing attacks in the enterprise
Deepfake phishing has already cost at least one company $243,000. Learn how cybersecurity leaders can train users to recognize this emerging attack vector. Continue Reading
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News
24 May 2022
Verizon DBIR: Ransomware dominated threat landscape in 2021
Though ransomware became an increasingly large threat to enterprises last year, Verizon's Data Breach Investigations Report found the model may not be as profitable as expected. Continue Reading
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News
23 May 2022
Veeam data protection aids users with secure restores
From 'nothing worked' to 'it just worked': How Veeam Software helped a Florida city out of a troublesome predicament with its legacy data backup platform. Continue Reading
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News
23 May 2022
AdvIntel: Conti rebranding as several new ransomware groups
According to AdvIntel's research, the Conti ransomware group's attack on the Costa Rican government was part of a rebranding effort, as the gang's ransom payments had dried up. Continue Reading
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Tip
20 May 2022
How to counter insider threats in the software supply chain
Insider threats extend beyond employees within your company to include people working at partners and third parties. Learn about these insider threats in the software supply chain. Continue Reading
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News
19 May 2022
QNAP devices hit by DeadBolt ransomware again
DeadBolt ransomware is once again targeting QNAP's NAS devices, and the vendor is urging customers to patch immediately. Continue Reading
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News
19 May 2022
VMware vulnerabilities under attack, CISA urges action
Administrators are grappling with four VMware vulnerabilities -- two older flaws that are under active exploitation and two new bugs that CISA believes will be exploited soon. Continue Reading
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Tip
19 May 2022
How to conduct a cyber-war gaming exercise
A successful cyber-war game can help organizations find weaknesses in their system but only if the right participants are involved and an after-action review is completed. Continue Reading
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News
19 May 2022
VeeamON 2022: Backup and security union emerges as top trend
Veeam has seized an opportunity to make its products more secure amid the prevalence of cyber attacks. The vendor is also looking to expand its reach, potentially through acquisitions. Continue Reading
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News
18 May 2022
Axie Infinity hack highlights DPRK cryptocurrency heists
The $620 million hack of developer Sky Mavis earlier this year is only the latest in a long line of cryptocurrency platform attacks conducted by North Korean nation-state actors. Continue Reading
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Definition
17 May 2022
man in the browser (MitB)
Man in the browser (MitB) is a security attack where the perpetrator installs a Trojan horse on the victim's computer that is capable of modifying that user's web transactions. Continue Reading
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Guest Post
16 May 2022
How cryptocurrencies enable attackers and defenders
Threat actors use cryptocurrencies for their anonymity, but they're not as impenetrable as once thought. Discover how cryptocurrencies can help attackers and defenders alike. Continue Reading
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News
16 May 2022
Critical bug in Zyxel firewalls, VPNs exploited in the wild
Initially discovered by Rapid7, the vulnerability poses a critical risk to enterprise networks and could allow attackers to gain remote access to Zyxel security products. Continue Reading
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News
16 May 2022
Kasten backup adds Kubernetes ransomware detection, security
As ransomware becomes a bigger concern for container admins, updates to the Kasten backup and disaster recovery platform for Kubernetes take a proactive security stance. Continue Reading
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Answer
12 May 2022
Zero trust vs. zero-knowledge proof: What's the difference?
Zero-knowledge proofs can help companies implement a zero-trust framework. Learn about the two concepts and how they come together to better secure networks. Continue Reading
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News
11 May 2022
Critical F5 vulnerability under exploitation in the wild
A remote code vulnerability in F5 BIG-IP network appliances is now being scanned for by threat actors, and some experts have observed exploitation in the wild. Continue Reading
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News
10 May 2022
New clues point to REvil ransomware gang's return
New research from Secureworks' Counter Threat Unit provides further evidence that the REvil ransomware group, once thought to be defunct, is indeed back on the scene. Continue Reading
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News
05 May 2022
Hackers exploit vulnerable Adminer for AWS database thefts
Mandiant researchers spotted a threat group using an exploit for older versions of Adminer to get their hands on metadata that included secret keys for AWS accounts. Continue Reading
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News
05 May 2022
SentinelOne finds high-severity flaws in Avast, AVG
The Avast and AVG vulnerabilities, which have been patched, went undiscovered for 10 years and potentially impact millions of devices, according to SentinelOne. Continue Reading
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Definition
04 May 2022
SYN flood attack
A SYN flood attack is a type of denial-of-service (DoS) attack on a computer server. Continue Reading
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News
04 May 2022
Winnti threat group rides again with IP theft campaign
A Chinese cyberespionage campaign, dubbed 'Operation CuckooBees' by Cybereason, went unnoticed for years as spies siphoned off intellectual property from companies. Continue Reading
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News
03 May 2022
RCE vulnerabilities found in Avaya, Aruba network switches
Armis told SearchSecurity that depending on device model, it was 'not too hard to develop an exploit' for the Avaya and Aruba flaws, heightening concern for administrators. Continue Reading
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News
03 May 2022
April ransomware attacks slam US universities
April's ransomware attacks were highlighted by several universities and colleges in the U.S. reporting attacks, plus a possible data breach at one of the world's largest beverage companies. Continue Reading
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Guest Post
02 May 2022
Russia-Ukraine war prompts security best practices refresher
The Russia-Ukraine war hasn't led to major cyber attacks affecting MSPs, but IT services providers should review cybersecurity best practices, including hardening and response. Continue Reading
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Definition
28 Apr 2022
Sender Policy Framework (SPF)
Sender Policy Framework (SPF) is a protocol designed to restrict who can use an organization's domain as the source of an email message. Continue Reading
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Feature
28 Apr 2022
Case study: Why it's difficult to attribute nation-state attacks
If two attacks look similar, don't assume they're from the same attacker. It's difficult to attribute nation-state attacks, as evidenced by the notorious 2016 Odinaff malware. Continue Reading
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Feature
28 Apr 2022
Tips for using a threat profile to prevent nation-state attacks
Is your organization concerned about state-sponsored attacks? Threat profiling can help prevent nation-state attacks. Get advice on how to create an effective threat profile. Continue Reading
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News
27 Apr 2022
Five Eyes reveals 15 most exploited vulnerabilities of 2021
Law enforcement agencies from five countries share the top flaws they've observed being exploited this year, some of which were disclosed as early as 2018. Continue Reading
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Feature
27 Apr 2022
Why companies should focus on preventing privilege escalation
If attackers can elevate privileges once inside a system, their access can be unlimited. Discover common privilege escalation techniques and how to mitigate them. Continue Reading
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Tip
27 Apr 2022
Best practices for creating an insider threat program
A thorough insider threat program includes plan preparation, threat assessment, and plan review and renewal. Learn how to implement this three-step model to protect your company. Continue Reading
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News
26 Apr 2022
Cisco Talos observes 'novel increase' in APT activity in Q1
The security vendor uncovered new trends during Q1, including increased APT attacks, 'democratized' ransomware threats and significant exploitation of Log4j bugs. Continue Reading
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News
25 Apr 2022
T-Mobile breached in apparent Lapsus$ attack
Lapsus$'s alleged theft of T-Mobile source code is in line with its previous activity; the cybercrime group previously stole code from Microsoft and Samsung. Continue Reading
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Feature
22 Apr 2022
An introduction to binary diffing for ethical hackers
Binary diffing is a useful tool in the ethical hacker's arsenal. This excerpt teaches aspiring penetration testers and red teamers how to get started. Continue Reading
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News
21 Apr 2022
Zero-day vulnerability exploitation soaring, experts say
Researchers with Mandiant and Google Project Zero say they observed significant increases in exploitation of zero-day vulnerabilities over the past year. Continue Reading
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News
21 Apr 2022
Cryptocurrency theft leaves Beanstalk Farms' future in doubt
Beanstalk Farms' founders confirmed they found many aspects of activity during the attack 'strange' but saw no reason for concern. Now, the company's future is uncertain. Continue Reading
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News
21 Apr 2022
FBI warns of 'timed' ransomware attacks on agriculture sector
In a recent alert, the FBI warned that food and agriculture businesses could become a target of ransomware attacks at the sector's busiest times of the year. Continue Reading
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Tip
21 Apr 2022
7 best practices for Web3 security risk mitigation
Tech builders and businesses evaluating decentralized technologies should keep these seven Web3 security best practices in mind to help mitigate traditional and novel cyber threats. Continue Reading
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News
20 Apr 2022
U.S. warns of 'increased' threats from Russian hacking groups
The U.S. government and its Five Eyes intelligence partners issued a joint advisory warning of the dangers posed by both state-sponsored hackers and cybercriminal crews in Russia. Continue Reading
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Tip
20 Apr 2022
Traditional IT vs. critical infrastructure cyber-risk assessments
When it comes to critical infrastructure cybersecurity, the stakes are uniquely high. Assessing associated cyber-risk, in turn, is uniquely challenging. Continue Reading
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News
20 Apr 2022
Kaspersky releases decryptor for Yanluowang ransomware
Kaspersky is offering users and admins a tool to decrypt data that had been locked away by the emerging Yanluowang ransomware gang, which was first revealed in December. Continue Reading
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News
20 Apr 2022
BlackCat emerges as one of the top ransomware threats
After several notable ransomware attacks against major enterprises, the BlackCat gang is drawing the attention of security researchers who have connected it to other groups. Continue Reading
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News
18 Apr 2022
Stolen OAuth tokens lead to 'dozens' of breached GitHub repos
Stolen OAuth tokens issued to Heroku and Travis CI were used to download data from the private repositories of 'dozens of organizations,' including GitHub subsidiary npm. Continue Reading
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Definition
15 Apr 2022
mail bomb
A mail bomb is a form of a denial-of-service (DoS) attack designed to overwhelm an inbox or inhibit a server by sending a massive number of emails to a specific person or system. Continue Reading
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News
14 Apr 2022
Critical Windows RPC vulnerability raises alarm
Security experts warn that a newly disclosed vulnerability in a critical Windows networking component is opening the door for remote takeover attacks. Continue Reading
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Opinion
14 Apr 2022
Making sense of conflicting third-party security assessments
Third-party security assessments from different sources may not always agree, but that doesn't mean they can be ignored. Learn how Mitre ATT&CK can provide perspective. Continue Reading
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News
14 Apr 2022
VMware Workspace One flaw actively exploited in the wild
Multiple threat intelligence providers have detected threat activity related to the VMware Workspace One flaw, including cryptocurrency mining activity. Continue Reading
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News
14 Apr 2022
US government, security vendors warn of new ICS malware
As attacks on critical infrastructure increase, experts warn that threat actors have developed new malware designed to take control of ICS and SCADA systems in the energy sector. Continue Reading
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News
13 Apr 2022
Microsoft dismantles ZLoader botnet
Microsoft and ESET security teams explained how they were able to identify and dismantle the command and control infrastructure of the notorious ZLoader malware network. Continue Reading
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News
13 Apr 2022
Sophos: LockBit affiliates hacked regional government agency
Sophos said attackers spent at least five months inside an unnamed regional government agency's network, remotely Googling for hacking tools before deploying LockBit ransomware. Continue Reading
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News
12 Apr 2022
Ukraine energy grid hit by Russian Industroyer2 malware
The 2016 malware known as 'Industroyer' has resurfaced in a new series of targeted attacks against industrial controller hardware at a Ukraine power company. Continue Reading
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News
12 Apr 2022
Synopsys: Enterprises struggling with open source software
To curb open source risk, Synopsys advises enterprises to keep a comprehensive inventory of all software within its environment and to understand that securing open source requires strong management. Continue Reading
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News
11 Apr 2022
Apple Security Bounty improves, but problems remain
Security researchers told SearchSecurity that Apple Security Bounty improved its communication earlier this year, which had been a key issue for participants. Continue Reading
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News
07 Apr 2022
How the FBI took down the Cyclops Blink botnet
The FBI's operation copied and removed Cyclops Blink's malware from victims' systems that were used as command and control devices, severing Sandworm's control of the botnet. Continue Reading
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Tip
07 Apr 2022
Pen testing guide: Types, steps, methodologies and frameworks
Penetration testing helps organizations find security vulnerabilities before hackers do. Uncover details about pen testing steps, methodologies, frameworks and standards. Continue Reading
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News
06 Apr 2022
US sanctions Garantex for laundering over $100M
The latest action follows a string of sanctions imposed during the past year against cryptocurrency exchanges operating out of Russia. Continue Reading
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News
06 Apr 2022
Conti ransomware leaks show a low-tech but effective model
The Conti ransomware gang runs largely on elbow grease, according to Akamai security researchers who analyzed the group's training materials and operating policies. Continue Reading
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Feature
06 Apr 2022
How secure are one-time passwords from attacks?
Adding an additional authentication layer makes it harder for attackers to get into accounts, but not all authentication factors are equal -- especially when it comes to OTPs. Continue Reading
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News
05 Apr 2022
March ransomware attacks strike finance, government targets
In March, ransomware reports and disclosures showed a variety of victims, from public schools and county governments to financial services firms and large enterprises. Continue Reading
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News
05 Apr 2022
Conti ransomware deployed in IcedID banking Trojan attack
The Conti ransomware gang gained recent notoriety for publicly backing Russia in its invasion of Ukraine. An anonymous researcher then leaked massive amounts of internal Conti data. Continue Reading
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News
04 Apr 2022
Cryptocurrency companies targeted in Mailchimp breach
Cryptocurrency wallet maker Trezor revealed phishing attacks against its customers that stemmed from a breach at Mailchimp, which the email marketing firm later confirmed. Continue Reading
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News
31 Mar 2022
Spring Framework vulnerabilities sow confusion, concern
Two different remote code execution vulnerabilities in a Java developer tool caused considerable confusion after one of the flaws was leaked online as a zero-day. Continue Reading
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News
31 Mar 2022
New 'AcidRain' malware may be connected to Viasat attack
SentinelOne did not directly attribute the malware to the Viasat attack. That said, researchers argued the "AcidRain" malware's functionality matches open source intelligence. Continue Reading
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News
30 Mar 2022
Axie Infinity hack results in $600M cryptocurrency heist
Axie Infinity, whose developer was hacked this month, is a popular NFT-based video game in which players earn cryptocurrency by raising their pay-to-play digital pets, or 'Axies.' Continue Reading
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News
29 Mar 2022
Rapid7 finds zero-day attacks surged in 2021
Cybercriminals are turning bugs into exploits faster than ever, according to Rapid7, which found that the average time to known exploitation dropped 71% last year. Continue Reading
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Feature
29 Mar 2022
Cryptocurrency cyber attacks on the rise as industry expands
Consumers, businesses and governments are finding new ways to use cryptocurrency, but a recent string of cyber attacks has highlighted security risks and shortcomings. Continue Reading
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News
25 Mar 2022
US indicts Russian nationals for critical infrastructure attacks
One defendant is accused of deploying the infamous Trisis or Triton malware against energy-sector companies, including a petrochemical plant in Saudi Arabia in a 2017 attack. Continue Reading
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Tip
25 Mar 2022
Review Microsoft Defender for endpoint security pros and cons
Microsoft wants to make Defender the only endpoint security product companies need, but does the good outweigh the bad? Read up on its features and pitfalls. Continue Reading
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Podcast
25 Mar 2022
Risk & Repeat: Lapsus$ highlights poor breach disclosures
This Risk & Repeat podcast episode examines two high-profile breaches by emerging threat group Lapsus$ and how Microsoft and Okta responded to these attacks. Continue Reading
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News
24 Mar 2022
North Korean hackers exploited Chrome zero-day for 6 weeks
Google researchers say a Chrome zero-day bug stemming from a use-after-free error was exploited by North Korean hackers against both media and financial targets earlier this year. Continue Reading
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News
24 Mar 2022
FBI: Ransomware hit 649 critical infrastructure entities in 2021
The FBI's Internet Crime Complaint Center found ransomware was a top threat to critical infrastructure security in 2021, hitting a wide range of organizations. Continue Reading
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News
23 Mar 2022
Microsoft confirms breach, attributes attack to Lapsus$
Microsoft disclosed it had been breached by emerging threat group Lapsus$ toward the end of a threat intelligence post dedicated to the extortion gang and its tactics. Continue Reading
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News
22 Mar 2022
Biden: Russia exploring cyber attacks against US
President Joe Biden's warning of potential Russian attacks against U.S. critical infrastructure is the latest call to action for the private sector to fortify its cyberdefenses. Continue Reading
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News
17 Mar 2022
JavaScript apps hit with pro-Ukraine supply chain attack
A popular JavaScript package was sabotaged by its developer and seeded with messages in support of Ukraine in what has become a supply chain attack. Continue Reading
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News
17 Mar 2022
Sandworm APT ramps up Cyclops Blink botnet with Asus routers
Trend Micro discovered that the Cyclops Blink botnet, which had originally targeted WatchGuard devices, is now spreading to Asus and 'at least one other vendor.' Continue Reading
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News
16 Mar 2022
LokiLocker ransomware crew bursts onto the scene
The mysterious LokiLocker ransomware group caught the attention of BlackBerry researchers, who say the outfit could become the next cybercrime group to menace enterprises. Continue Reading
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News
15 Mar 2022
Container vulnerability opens door for supply chain attacks
A CRI-O container engine vulnerability could allow attackers to bypass security controls and take over a host system, according to CrowdStrike researchers. Continue Reading
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News
10 Mar 2022
Log4Shell vulnerability continues to menace developers
Months after it was first disclosed, the Log4j RCE vulnerability remains widespread on code-sharing sites and open source repositories, according to security researchers. Continue Reading
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Answer
10 Mar 2022
Use microsegmentation to mitigate lateral attacks
Attackers will get into a company's system sooner or later. Limit their potential damage by isolating zones with microsegmentation to prevent lateral movement. Continue Reading
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Feature
10 Mar 2022
6 potential enterprise security risks with NFC technology
Some NFC risks include payment processing fraud, eavesdropping and replay attacks. Continue Reading
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Definition
10 Mar 2022
metamorphic and polymorphic malware
Metamorphic and polymorphic malware are two types of malicious software (malware) that can change their code as they propagate through a system. Continue Reading
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News
09 Mar 2022
Researchers disclose new Spectre V2 vulnerabilities
The Spectre class of data disclosure vulnerabilities is once again at the security forefront after researchers discovered a new variant of the side-channel attack. Continue Reading
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News
09 Mar 2022
Immersive Labs: Average cyberthreat response takes 96 days
Immersive Labs' Cyber Workforce Benchmark found that some critical threats, including a zero-day vulnerability, took an average of six months to fully address. Continue Reading
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News
08 Mar 2022
FBI finds Ragnar Locker hit 52 U.S. critical infrastructure targets
While providing an updated list of indicators of compromise, the FBI revealed that a range of critical sectors were attacked by the ransomware group. Continue Reading
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News
08 Mar 2022
Researchers uncover vulnerabilities in APC Smart-UPS devices
Researchers with Armis found a trio of vulnerabilities in uninterruptible power supply (UPS) devices from APC that could be remotely exploited by threat actors. Continue Reading
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Tip
07 Mar 2022
Top DevSecOps certifications and trainings
Check out some of the top DevSecOps certifications and trainings that can help professionals learn how to shift security left in the software development lifecycle. Continue Reading
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News
07 Mar 2022
Samsung breached, Nvidia hackers claim responsibility
Samsung said Galaxy device source code was stolen, but no employee or customer personal information was taken by the attackers, who appear to be with the Lapsus$ ransomware group. Continue Reading
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News
04 Mar 2022
Hackers using stolen Nvidia certificates to sign malware
The recent breach of Nvidia's corporate network has resulted in the posting of valid software certificates that are now being used to spread malware in the wild. Continue Reading
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Podcast
04 Mar 2022
Risk & Repeat: Conti ransomware gang gets breached
This Risk & Repeat podcast episode covers the massive Conti leaks, including the data that was published and what it reveals about the infamous ransomware gang. Continue Reading
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News
04 Mar 2022
February ransomware attacks hit major enterprises
Enterprises, colleges and municipalities in the U.S. continued to be hit by ransomware as publicly reported attacks for February piled up. Continue Reading
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News
03 Mar 2022
Job applications a top HR business cybersecurity risk
Russia's attack on Ukraine has raised the risk of a business cybersecurity attack, and HR may be particularly vulnerable. But there are steps HR can take to protect its company. Continue Reading
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Feature
03 Mar 2022
How to stop malicious or accidental privileged insider attacks
How many permissions or privileges a user has will affect how big of an insider threat they are. Discover the issues surrounding privileged users and how to curtail these threats. Continue Reading
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Definition
03 Mar 2022
Open Web Application Security Project (OWASP)
The Open Web Application Security Project (OWASP) is a nonprofit foundation that provides guidance on how to develop, purchase and maintain trustworthy and secure software applications. Continue Reading
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News
02 Mar 2022
CrowdStrike cracks PartyTicket ransomware targeting Ukraine
CrowdStrike's analysis of the new ransomware, also known as HermeticRansom, that affected Ukrainian organizations revealed that files encrypted with PartyTicket are recoverable. Continue Reading
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News
01 Mar 2022
Conti ransomware source code, documentation leaked
The Conti ransomware gang's primary Bitcoin address, found in the leak, showed the crime outfit has taken in over $2 billion in cryptocurrency since 2017. Continue Reading