Josh Fruhlinger

Josh Fruhlinger is a writer and editor who lives in Los Angeles.

How EDR stops hackers in their tracks

How EDR stops hackers in their tracks

EDR is a category of security tools that monitor end-user hardware devices across a network for a range of suspicious activities and behavior, reacting automatically to block perceived threats and saving forensic data for further...

Social engineering explained: How criminals exploit human behavior

Social engineering explained: How criminals exploit human behavior

Social engineering is the art of exploiting human psychology, rather than technical hacking techniques, to gain access to buildings, systems or data.

What is OAuth? How the open authorization framework works

What is OAuth? How the open authorization framework works

OAuth is an open-standard authorization protocol or framework that describes how unrelated servers and services can safely allow authenticated access to their assets. It is widely accepted, but be aware of its vulnerabilities.

2fa explained: How to enable it and how it works

2fa explained: How to enable it and how it works

Two-factor authentication (2fa) is a method of establishing access to an online account or computer system that requires the user to provide two different types of information. It can boost security for anyone using any kind of online...

Famous social engineering attacks: 12 crafty cons

Famous social engineering attacks: 12 crafty cons

This rogues gallery of social engineering attack examples made headlines by taking advantage of human nature.

What is a computer worm? How this self-spreading malware wreaks havoc

What is a computer worm? How this self-spreading malware wreaks havoc

A worm is a form of malware (malicious software) that operates as a self-contained application and can transfer and copy itself from computer to computer.

What is a computer virus? How they spread and 5 signs you've been infected

What is a computer virus? How they spread and 5 signs you've been infected

A computer virus is a form of malicious software that piggybacks onto legitimate application code in order to spread and reproduce itself.

What is a Trojan? How this tricky malware works

What is a Trojan? How this tricky malware works

In computer security, a Trojan horse is a type of malware that can wreak havoc on computer networks. Unlike a virus, which relies on a host program to spread itself, a Trojan relies on unwitting users to let it in.

What is PKI? And how it secures just about everything online

What is PKI? And how it secures just about everything online

Public key infrastructure (PKI) is a catch-all term for everything used to establish and manage public key encryption, one of the most common forms of internet encryption. It is baked into every web browser in use today to secure...

Malware explained: How to prevent, detect and recover from it

Malware explained: How to prevent, detect and recover from it

Malware is a blanket term for viruses, worms, trojans, and other harmful computer programs hackers use to wreak destruction and gain access to sensitive information. Learn what malware does and how you can remove it—or prevent it.

What is OPSEC? A process for protecting critical information

What is OPSEC? A process for protecting critical information

Operations security (OPSEC) is a process by which organizations assess and protect public data about themselves that could, if properly analyzed and grouped with other data by a clever adversary, reveal a bigger picture that ought to...

Does it matter who the CISO reports to?

Does it matter who the CISO reports to?

Reporting relationships are more than lines on an org chart, they're lines of authority. Ultimately, who the CISO reports to may say more about an organization's maturity than it does about an individual's effectiveness.

What is a honeypot? A trap for catching hackers in the act

What is a honeypot? A trap for catching hackers in the act

A honeypot is a system designed to lure hackers into revealing their origins and techniques, and they're used by security researchers and corporate IT alike.

7 hot cybersecurity trends (and 4 going cold)

7 hot cybersecurity trends (and 4 going cold)

Is that security trend hot or not? From tools and technologies to threats, tactics, and training, the numbers don't lie.

What is digital forensics? And how to land a job in this hot field

What is digital forensics? And how to land a job in this hot field

Digital forensics is the application of scientific investigatory techniques to digital crimes and attacks. Think beyond the awful (and justly cancelled) TV show CSI Cyber; digital forensics is a crucial aspect of law and business in...

What is a CISO? Responsibilities and requirements for this vital leadership role

What is a CISO? Responsibilities and requirements for this vital leadership role

The chief information security officer (CISO) is the executive responsible for an organization's information and data security. Learn what it takes to land a CISO job and how to be successful in the role.

Ransomware explained: How it works and how to remove it

Ransomware explained: How it works and how to remove it

Ransomware is a form of malware that encrypts a victim's files. The attacker then demands a ransom from the victim to restore access to the data upon payment. 

What is SSL, TLS? And how this encryption protocol works

What is SSL, TLS? And how this encryption protocol works

The SSL/TLS protocol encrypts internet traffic of all types, making secure internet communication (and therefore internet commerce) possible. Here are the basics of how it works and what comes next.

10 things you should know about dark web websites

10 things you should know about dark web websites

Catch a glimpse of what flourishes in the shadows of the internet.

What is WannaCry ransomware, how does it infect, and who was responsible?

What is WannaCry ransomware, how does it infect, and who was responsible?

Stolen government hacking tools, unpatched Windows systems, and shadowy North Korean operatives made WannaCry a perfect ransomware storm.

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