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Bring yourself up to speed with our introductory content.
GPS jamming
GPS jamming is the act of using a frequency transmitting device to block or interfere with radio communications. Continue Reading
What are the differences between su and sudo commands?
Linux administrators have choices when deciding how to delegate privileges. Learn about the options they can take while ensuring their operations remain secure. Continue Reading
12 types of wireless network attacks and how to prevent them
From packet sniffing and rogue access points to spoofing attacks and encryption cracking, learn about common wireless network attacks and how to prevent them. Continue Reading
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Evil Corp
Evil Corp is an international cybercrime network that uses malicious software to steal money from victims' bank accounts and to mount ransomware attacks. Continue Reading
Trojan horse
In computing, a Trojan horse is a program downloaded and installed on a computer that appears harmless, but is, in fact, malicious. Continue Reading
7 steps to implementing a successful XDR strategy
There's still confusion around what extended detection and response is, but it will play a key role in enterprise security. To successfully implement XDR, follow these steps.Continue Reading
Top 5 key ethical hacker skills
Ethical hacking can be a rewarding career, but it requires tenacity, curiosity and creativity, among other traits. Oh, and you better be a good writer, too.Continue Reading
quantum key distribution (QKD)
Quantum key distribution (QKD) is a secure communication method for exchanging encryption keys only known between shared parties.Continue Reading
Common Body of Knowledge (CBK)
In security, the Common Body of Knowledge (CBK) is a comprehensive framework of all the relevant subjects a security professional should be familiar with, including skills, techniques and best practices.Continue Reading
buffer underflow
A buffer underflow, also known as a buffer underrun or a buffer underwrite, is when the buffer -- the temporary holding space during data transfer -- is fed data at a lower rate than it is being read from.Continue Reading
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pen testing (penetration testing)
A penetration test, also called a pen test or ethical hacking, is a cybersecurity technique that organizations use to identify, test and highlight vulnerabilities in their security posture.Continue Reading
time-based one-time password
A time-based one-time password (TOTP) is a temporary passcode generated by an algorithm that uses the current time of day as one of its authentication factors.Continue Reading
Advice for beginner computer forensic investigators
For those interesting in becoming a computer forensics investigator, learn about the career and what to expect, as well as why digital evidence is the most volatile evidence.Continue Reading
RAT (remote access Trojan)
A RAT (remote access Trojan) is malware an attacker uses to gain full administrative privileges and remote control of a target computer.Continue Reading
Top 10 pen testing interview questions with answers
Are you pursuing a career in pen testing? Prepare with this list of 10 pen testing interview questions and answers created by three security experts.Continue Reading
Top IT security manager interview questions
Are you looking for a leadership role in cybersecurity? Three security experts offer their advice on how to answer the most common IT security manager interview questions.Continue Reading
Diffie-Hellman key exchange (exponential key exchange)
Diffie-Hellman key exchange is a method of digital encryption that securely exchanges cryptographic keys between two parties over a public channel without their conversation being transmitted over the internet.Continue Reading
An overview of the CISA Zero Trust Maturity Model
A zero-trust framework blocks all attempts to access internal infrastructure without authentication. The CISA Zero Trust Maturity Model is a roadmap to get there.Continue Reading
The 5 principles of zero-trust security
Zero trust is a journey, not a destination. Ensure your corporate network is safe from internal and external threats by implementing these five principles of zero-trust security.Continue Reading
Why zero trust requires microsegmentation
Microsegmentation is a key security technique that enables organizations to achieve a zero-trust model and helps ensure the security of workloads regardless of where they are located.Continue Reading
How to get into cybersecurity with no experience
Cybersecurity needs new talent now more than ever, but landing that first job without a computer science degree can still be difficult. Here are five tips for getting in the door.Continue Reading
MICR (magnetic ink character recognition)
MICR (magnetic ink character recognition) is a technology invented in the 1950s that's used to verify the legitimacy or originality of checks and other paper documents.Continue Reading
How DKIM records reduce email spoofing, phishing and spam
Learn how implementing DomainKeys Identified Mail helps protect against phishing, spam and email forgery by digitally signing outgoing messages.Continue Reading
data masking
Data masking is a method of creating a structurally similar but inauthentic version of an organization's data that can be used for purposes such as software testing and user training.Continue Reading
How to become a CISO
The chief information security officer role is growing in profile and importance. Explore six actionable tips for aspiring CISOs as they work toward cybersecurity's top job.Continue Reading
computer worm
A computer worm is a type of malware whose primary function is to self-replicate and infect other computers while remaining active on infected systems.Continue Reading
Sample CompTIA CASP+ practice questions with answers
Preparing for the CompTIA Advanced Security Practitioner certification or refreshing your knowledge to renew your cert? Use these CASP+ practice questions to test your smarts.Continue Reading
How to prepare for the CompTIA CASP+ exam
Are you pursuing the CompTIA Advanced Security Practitioner certification? The author of a CASP+ cert guide offers advice on how to prepare for the exam.Continue Reading
How to create and add an SPF record for email authentication
Learn how to create Sender Policy Framework records to list authenticated mail servers for an email domain to fight spam, phishing, email forgery and other malicious email.Continue Reading
How to start developing a plan for SASE implementation
From prioritizing business problems to identifying future initiatives to assessing critical tool gaps, learn how to create a realistic SASE implementation roadmap.Continue Reading
corporate governance
Corporate governance is the combination of rules, processes and laws by which businesses are operated, regulated and controlled.Continue Reading
How SPF records prevent email spoofing, phishing and spam
Forged email has long been used by hackers to break into protected systems. Learn how the Sender Policy Framework protocol helps stop spoofing, phishing and other malicious mail.Continue Reading
homomorphic encryption
Homomorphic encryption is the conversion of data into ciphertext that can be analyzed and worked with as if it were still in its original form.Continue Reading
What is identity sprawl and how can it be managed?
With identity-based attacks on the rise, organizations need to prioritize identity management. Learn about identity sprawl, why it's a risk and how it can be managed.Continue Reading
How to create a threat profile, with template
Read five key steps on how to create a threat profile, and get started making them customized to your organization with our free template.Continue Reading
What is DomainKeys Identified Mail (DKIM)?
DomainKeys Identified Mail (DKIM) is a protocol for authenticating email messages using public key cryptography to protect against forged emails.Continue Reading
What is Domain-based Message Authentication, Reporting and Conformance (DMARC)?
The Domain-based Message Authentication, Reporting and Conformance (DMARC) protocol is one leg of the tripod of internet protocols that support email authentication methods.Continue Reading
Is ethical hacking legal? And more ethical hacking advice
Is ethical hacking legal? Learn about the legality of ethical hacking, why it's important, its benefits and what organizations should look for when hiring an ethical hacker.Continue Reading
Ethical hacking: How to conduct a Sticky Keys hack
Physical security is often overlooked by cybersecurity teams. Learn about physical cybersecurity attacks in step-by-step instruction on how to conduct a Windows Sticky Keys hack.Continue Reading
Data masking vs. data encryption: How do they differ?
Discover how the data security techniques of data masking and data encryption compare, while also learning about different types of both and their use cases.Continue Reading
How to develop a data breach response plan: 5 steps
A data breach response plan outlines how a business will react to a breach. Follow these five steps, and use our free template to develop your organization's plan.Continue Reading
data breach
A data breach is a cyber attack in which sensitive, confidential or otherwise protected data has been accessed or disclosed in an unauthorized fashion.Continue Reading
SSH2 vs. SSH1 and why SSH versions still matter
The Secure Shell protocol, SSH, was redesigned and released as SSH2 in 2006. While SSH1 lingers for legacy uses, find out how the protocols differ and why it's important.Continue Reading
insider threat
An insider threat is a category of risk posed by those who have access to an organization's physical or digital assets.Continue Reading
Symmetric vs. asymmetric encryption: What's the difference?
Explore the differences between symmetric vs. asymmetric encryption, including how they work and common algorithms, as well as their pros and cons.Continue Reading
How to create a data security policy, with template
Are you looking to create or update your organization's data security policy? Learn about the key elements of a data security policy, and use our free template to get started.Continue Reading
data compliance
Data compliance is a process that identifies the applicable governance for data protection, security, storage and other activities and establishes policies, procedures and protocols ensuring data is fully protected from unauthorized access and use, ...Continue Reading
VMDR: Inside vulnerability management, detection and response
VMDR offers automated asset identification, threat prioritization and patch management. But do companies need another vulnerability management tool?Continue Reading
3 steps for getting started with security service edge
Before getting started with security service edge (SSE), formulate a migration strategy. Check out these three expert tips for tackling SSE with maximum efficiency and ease.Continue Reading
SecOps vs. CloudSecOps: What does a CloudSecOps team do?
Now, more than ever, organizations need to build controls, monitor and enact security response activities for the cloud. This is where the CloudSecOps team comes into play.Continue Reading
How to use SSH tunnels to cross network boundaries
The Secure Shell protocol authenticates and encrypts network connections. Find out how it's used to build tunnels while crossing private networks and even firewalls.Continue Reading
Top 7 types of data security technology
These seven types of data security technologies -- from encryption to masking -- will better protect customer and enterprise data from inappropriate and unauthorized access and use.Continue Reading
How to create a critical infrastructure incident response plan
Does your organization have an incident response plan for disruptions to critical infrastructure? Learn how to write a successful plan for your company.Continue Reading
blended threat
A blended threat is an exploit that combines elements of multiple types of malware and usually employs various attack vectors to increase the severity of damage and the speed of contagion.Continue Reading
Negotiating a golden parachute clause in a CISO contract
If a CISO becomes the company scapegoat after a security incident, a strong golden parachute clause can mean the difference between a soft landing and a hard crash.Continue Reading
How to determine out-of-scope bug bounty assets
What happens when a security researcher discovers a bug in an out-of-scope asset? Learn how to handle bug bounty scope in this excerpt from 'Corporate Cybersecurity.'Continue Reading
Use ssh-keygen to create SSH key pairs and more
Learn how to use ssh-keygen to create new key pairs, copy host keys, use a single login key pair for multiple hosts, retrieve key fingerprints and more in this tutorial.Continue Reading
X.509 certificate
An X.509 certificate is a digital certificate that uses the widely accepted international X.509 public key infrastructure (PKI) standard to verify that a public key belongs to the user, computer or service identity contained within the certificate.Continue Reading
directory traversal
Directory traversal is a type of HTTP exploit in which a hacker uses the software on a web server to access data in a directory other than the server's root directory.Continue Reading
3 types of PKI certificates and their use cases
Public key infrastructure helps authenticate senders via cryptography and digital certificates. Learn about three types of PKI certificates and their use cases.Continue Reading
How to get started with multi-cloud threat hunting
More clouds mean a bigger attack surface. It also complicates how companies can accurately hunt for potential threats. But there are steps to take that can reduce the risk.Continue Reading
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
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
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
parameter tampering
Parameter tampering is a type of web-based cyber attack in which certain parameters in a URL are changed without a user's authorization.Continue Reading
SYN flood attack
A SYN flood attack is a type of denial-of-service (DoS) attack on a computer server.Continue Reading
Cyber-war gaming: A cybersecurity tabletop exercise
Based off military war games, cyber-war gaming examines a company's security posture. Learn how it works, the readiness needed, who should be involved and more.Continue Reading
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
How to conduct Linux privilege escalations
Learn how to conduct Linux kernel exploitation with Metasploit and manually, as well as how to identify vulnerabilities on Linux using enumeration scripts.Continue Reading
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
security information management (SIM)
Security information management (SIM) is the practice of collecting, monitoring and analyzing security-related data from computer logs and various other data sources.Continue Reading
WLAN Authentication and Privacy Infrastructure (WAPI)
WLAN Authentication and Privacy Infrastructure (WAPI) is a wireless local area network security standard officially supported by the Chinese government.Continue Reading
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
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
Open System Authentication (OSA)
Open System Authentication (OSA) is a process by which a computer could gain access to a wireless network that uses the Wired Equivalent Privacy (WEP) protocol.Continue Reading
AAA server (authentication, authorization and accounting)
An AAA server is a server program that handles user requests for access to computer resources and, for an enterprise, provides authentication, authorization and accounting (AAA) services.Continue Reading
SOC 1 (System and Organization Controls 1)
System and Organization Controls 1, or SOC 1 (pronounced "sock one"), aims to control objectives within a SOC 1 process area and documents internal controls relevant to an audit of a user entity's financial statements.Continue Reading
content filtering
Content filtering is a process involving the use of software or hardware to screen and/or restrict access to objectionable email, webpages, executables and other suspicious items.Continue Reading
How to implement OpenID Connect for single-page applications
The OpenID Connect authentication protocol can be used to secure a variety of applications. This excerpt teaches developers how it works with single-page applications.Continue Reading
How to use OpenID Connect for authentication
OpenID Connect has become a trusted protocol to connect with identity providers. Explore how to use it for IAM, common threats to be aware of and how to connect to multiple IdPs.Continue Reading
Luhn algorithm (modulus 10)
The Luhn algorithm, also called modulus 10 or modulus 10 algorithm, is a simple mathematical formula used to validate a user's identification numbers.Continue Reading
authentication server
An authentication server is an application that facilitates the authentication of an entity that attempts to access a network.Continue Reading
PA-DSS (Payment Application Data Security Standard)
Payment Application Data Security Standard (PA-DSS) is a set of requirements intended to help software vendors develop secure payment applications for credit card transactions.Continue Reading
mutual authentication
Mutual authentication, also called two-way authentication, is a process or technology in which both entities in a communications link authenticate each other.Continue Reading
How to write an information security policy, plus templates
Infosec policies are key to any enterprise security program. Read up on types of security policies and how to write one, and download free templates to start the drafting process.Continue Reading
screened subnet
A screened subnet, or triple-homed firewall, refers to a network architecture where a single firewall is used with three network interfaces.Continue Reading
How to build a security champions program
Security champions are key to promoting and creating a security-first company. Learn how to build a security champions program using these four steps.Continue Reading
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
security identifier (SID)
In the context of Windows computing and Microsoft Active Directory (AD), a security identifier (SID) is a unique value that is used to identify any security entity that the operating system (OS) can authenticate.Continue Reading
North American Electric Reliability Corporation Critical Infrastructure Protection (NERC CIP)
The North American Electric Reliability Corporation Critical Infrastructure Protection (NERC CIP) plan is a set of standards aimed at regulating, enforcing, monitoring and managing the security of the Bulk Electric System (BES) in North America.Continue Reading
Tips for creating a cybersecurity resume
Resumes help candidates leave an impression on potential employers. But did you know one resume often isn't enough? Learn this and other tips for creating a cybersecurity resume.Continue Reading
How to manage imposter syndrome in cybersecurity
The imposter syndrome phenomenon is readily apparent in cybersecurity. Learn how to manage it, along with mishaps to avoid during the job hunt and other career advice.Continue Reading
Privacy-enhancing technology types and use cases
Data is key to companies' success, but maintaining its privacy and ensuring regulatory compliance is difficult. Learn about privacy-enhancing technologies that keep data protected.Continue Reading
Shared Key Authentication (SKA)
Shared Key Authentication (SKA) is a process by which a computer can gain access to a wireless network that uses the Wired Equivalent Privacy (WEP) protocol.Continue Reading
passphrase
A passphrase is a sentencelike string of words used for authentication that is longer than a traditional password, easy to remember and difficult to crack.Continue Reading
How to use PKI to secure remote network access
Public key infrastructure is a more secure option than password-based or multifactor authentication. Learn how those benefits can extend to remote employees and access.Continue Reading
security clearance
A security clearance is an authorization that allows access to information that would otherwise be forbidden.Continue Reading
Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP)
Counter Mode with Cipher Block Chaining Message Authentication Code Protocol (CCMP) is an encryption protocol based on the U.S. federal government's Advanced Encryption Standard (AES) algorithm and uses the Counter Mode with CBC-MAC (CCM) mode of ...Continue Reading
A day in the life of a cybersecurity manager
The role of a cybersecurity leader is often misunderstood. Experience a day in the life of a cybersecurity manager with this breakdown of a security leader's typical schedule.Continue Reading
How to prepare for malicious insider threats
Stopping malicious insider threats is just as important as preventing external ones. Uncover what to look for and strategies to prevent insider threats before they cause damage.Continue Reading