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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Tip
19 May 2025
AI model theft: Risk and mitigation in the digital era
Enterprises are spending big bucks on developing and training proprietary AI models. But cybercriminals are also eyeing this valuable intellectual property. Continue Reading
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Conference Coverage
16 May 2025
RSAC Conference 2025
Follow SearchSecurity's RSAC 2025 guide for insightful pre-conference insights and reports on notable presentations and breaking news at the world's biggest infosec event. Continue Reading
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Conference Coverage
16 May 2025
RSAC Conference 2025
Follow SearchSecurity's RSAC 2025 guide for insightful pre-conference insights and reports on notable presentations and breaking news at the world's biggest infosec event. Continue Reading
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Definition
16 May 2025
What is risk appetite?
Risk appetite is the amount of risk an organization or investor is willing to take in pursuit of objectives it deems have value. Continue Reading
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News
09 May 2025
News brief: AI security risks highlighted at RSAC 2025
Check out the latest security news from the Informa TechTarget team. Continue Reading
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Video
09 May 2025
An explanation of cyberattacks and their different forms
Cyberattacks are malicious attempts to breach computer systems. Types include phishing, ransomware and SQL injection. Prevention requires training, monitoring and encryption. Continue Reading
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Feature
08 May 2025
How to spot and expose fraudulent North Korean IT workers
North Koreans have infiltrated countless U.S. companies as remote IT workers. That means your top developer could also work for one of the world's most notorious dictators. Continue Reading
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News
02 May 2025
Salt Typhoon telecom hacks one of the most consequential campaigns against US ever, expert says
A prominent former member of a recently shuttered cyber-incident review panel said the board should be reconstituted with independent authority. Continue Reading
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News
02 May 2025
Enterprises need to beware of these 5 threats
A panel of SANS Institute leaders detailed current threats and provided actionable steps for enterprises to consider. Continue Reading
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Tip
02 May 2025
15 of the biggest ransomware attacks in history
From attacks on private organizations and manufacturers to healthcare organizations and even entire countries, ransomware has done extensive damage in recent years. Continue Reading
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Feature
01 May 2025
4 lessons in the new era of AI-enabled cybercrime
Cyberattacks have evolved rapidly as GenAI use has become more widespread. An RSAC Conference 2025 panel shared what they've learned over the past two years. Continue Reading
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News
01 May 2025
RSAC: Check Point warns of 'rocket and missile' game with AI
Also, Rubrik and Rackspace unveiled a new strategic partnership. Continue Reading
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News
01 May 2025
Adversaries are toying with U.S. networks and D.C. is short on answers
While nation-state actors are demonstrating how easily they can infiltrate U.S. networks, government officials don't seem to have a clear vision for what comes next. Continue Reading
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News
30 Apr 2025
TheWizards APT casts a spell on Asian gamblers with novel attack
A SLAAC-spoofing, adversary-in-the-middle campaign is hiding the WizardNet backdoor malware inside updates for legitimate software and popular applications. Continue Reading
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News
30 Apr 2025
AI-fueled cybercrime at risk of outpacing traditional defenses, Check Point warns
The security firm said in a new report that defenders should begin using AI to counter cybercriminals' adoption of the technology. Continue Reading
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Feature
30 Apr 2025
RSAC Conference 2025 video reports
We chatted on camera with attendees and presenters at RSAC 2025. Check out this video collection to get highlights from one of the world's major cybersecurity conferences. Continue Reading
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News
29 Apr 2025
RSAC: Fortinet's latest threat report, Google Cloud-Mandiant, more
Many vendors are showcasing their latest AI-powered cybersecurity capabilities. Continue Reading
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News
29 Apr 2025
Hacking in space: Not as tough as you might think
Barbara Grofe, space asset security architect at Spartan Corp, discussed the realities of hacking in space, and the outlook is not pie-in-the-sky. Continue Reading
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Definition
28 Apr 2025
What is a risk map (risk heat map)?
A risk map, or risk heat map, is a data visualization tool for communicating specific risks an organization faces. Continue Reading
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Tip
28 Apr 2025
7 stages of the ransomware lifecycle
It can be nearly impossible to predict if or how a ransomware group will target an organization, but there are knowable stages of a ransomware attack. Continue Reading
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Tip
24 Apr 2025
How to incorporate smishing into security awareness training
Smishing is a major threat on enterprise smartphones, but users might not know how it compares to traditional email phishing. IT can help block attacks with training and testing. Continue Reading
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Feature
24 Apr 2025
Top 10 ransomware targets by industry
In any given year, certain industries seem to make more attractive targets for ransomware groups. But no single sector shoulders all -- or even most -- of the risk. Continue Reading
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Definition
23 Apr 2025
What is ransomware? Definition and complete guide
Ransomware is malware that locks and encrypts a victim's data, files, devices or systems, rendering them inaccessible and unusable until the attacker receives a ransom payment. Continue Reading
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Feature
23 Apr 2025
Explore the impact of quantum computing on cryptography
When quantum computers become more widely available, lots of encryption types will be vulnerable. Learn why, plus solutions and how to navigate a post-quantum cryptography world. Continue Reading
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Definition
22 Apr 2025
What is crypto ransomware? How cryptocurrency aids attackers
Crypto ransomware is a form of ransomware that uses cryptography to encrypt computer files so that the victim cannot access them. In exchange for the demanded ransom, the attacker claims it will tell the victimized business how to regain access to the stolen data. Continue Reading
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Feature
22 Apr 2025
9 quantum computing challenges IT leaders should know
While the theory of quantum mechanics is complex, the technology might offer practical uses for organizations. Learn about the challenges and opportunities of quantum computing. Continue Reading
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Definition
21 Apr 2025
What is a brute-force attack?
A brute-force attack is a trial-and-error hacking method cybercriminals use to decode login information and encryption keys to gain unauthorized access to systems. Continue Reading
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Tip
21 Apr 2025
Top 5 ransomware attack vectors and how to avoid them
Protecting your organization against ransomware attack entryways could mean the difference between staying safe or falling victim to a devastating breach. Continue Reading
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Feature
18 Apr 2025
The history and evolution of ransomware attacks
Ransomware creators have become more innovative and savvier as organizations up their defenses. Continue Reading
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Tip
17 Apr 2025
Tips to find cyber insurance coverage in 2025
Most businesses have a form of cyber insurance, either through cyber liability and data breach endorsements in traditional business policies or through standalone cyber policies. Continue Reading
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Tip
15 Apr 2025
How to effectively respond to a ransomware attack
Does your organization know what to do if its systems are suddenly struck by a ransomware attack? To be ready, prepare your ransomware response well ahead of time. Continue Reading
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Tip
15 Apr 2025
How to ensure OT secure remote access and prevent attacks
OT systems face threats from attackers targeting their remote access capabilities. Segmenting networks is one important step. Learn other ways to safeguard your OT systems. Continue Reading
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Feature
15 Apr 2025
Ransomware trends, statistics and facts in 2025
Supply chain attacks, double extortion and RaaS are some of the ransomware trends that will continue to disrupt businesses in 2025. Is your industry a top target? Continue Reading
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Tip
14 Apr 2025
How to conduct ransomware awareness training for employees
As your organization's first line of defense, hold regular employee training on how to prevent, detect and respond to ransomware attacks. Continue Reading
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Feature
14 Apr 2025
8 types of ransomware, plus examples of attacks
There are eight main types of ransomware but hundreds of examples of ransomware strains. Learn how the ransomware types work and review notable attacks and variants. Continue Reading
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Feature
11 Apr 2025
Ransomware negotiation: Does it work, and should you try it?
Negotiating with the criminals who are holding your data for ransom is a daunting and stressful endeavor. Experts weigh in on the risks and the potential outcomes. Continue Reading
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Tip
09 Apr 2025
How to prevent and protect against ransomware
Organizations sometimes learn difficult lessons about gaps in their cybersecurity defenses. Here's what to know about ransomware preparation, detection, response and recovery. Continue Reading
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Feature
09 Apr 2025
QR code phishing: 14 quishing prevention tips
Quishing is an offputting word for an on-the-rise attack method. Learn how to defend against it. Continue Reading
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Tip
09 Apr 2025
Quantum-resistant algorithms: Why they matter
Quantum-resistant algorithms play a crucial role in post-quantum cryptography, which protects against threats on digital signatures and current encryption methods. Continue Reading
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Tip
08 Apr 2025
Ransomware payments: Considerations before paying
To pay or not to pay -- that's the question after a ransomware attack. Law enforcement recommends against it, but that doesn't stop some companies from paying up. Continue Reading
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Answer
08 Apr 2025
How to report ransomware attacks: Steps to take
The Cybersecurity and Infrastructure Security Agency and FBI recommend reporting ransomware attacks to the authorities as soon as possible. Continue Reading
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Feature
07 Apr 2025
Explaining AI's impact on ransomware attacks and security
Experts say AI and LLMs will make ransomware attacks more dangerous, but those same tools could be turned against criminals by bolstering ransomware protections. Continue Reading
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Tip
03 Apr 2025
How to detect and remove malware from an Android device
Mobile malware can come in many forms, but users might not know how to identify it. Understand the signs to be wary of on Android devices, as well as what to do to remove malware. Continue Reading
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Feature
03 Apr 2025
4 ransomware detection techniques to catch an attack
While prevention is key, it's not enough to protect a company's systems from ransomware. Learn how early detection with these four methods helps reduce damage from attacks. Continue Reading
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Feature
31 Mar 2025
Cybercrime-as-a-service explained: What you need to know
Cybercrime-as-a-service is quickly evolving, offering easy access to hacking tools for criminals. Learn how it works and steps to protect your organization from attacks. Continue Reading
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Definition
31 Mar 2025
What is a hacker?
A hacker is an individual who uses computer, networking or other skills to overcome a technical problem. Continue Reading
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Tip
31 Mar 2025
How to prevent a data breach: 11 best practices and tactics
When it comes to data breach prevention, the stakes are high. While it's impossible to eliminate the risk, organizations can minimize it by following these best practices. Continue Reading
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News
28 Mar 2025
News brief: China-linked APTs and Russian access broker
Check out the latest security news from the Informa TechTarget team. Continue Reading
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Definition
26 Mar 2025
What is a web application firewall (WAF)? WAF explained
A web application firewall (WAF) is a firewall that is meant to protect web applications against common web-based threats. Continue Reading
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Definition
20 Mar 2025
What is continuous monitoring?
Continuous monitoring constantly observes the performance and operation of IT assets to help reduce risk and improve uptime instead of taking a point-in-time snapshot of a device, network or application. Continue Reading
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Opinion
20 Mar 2025
How to sideload iOS apps and why it's dangerous
IT professionals might think the hassle of jailbreaking a device deters users from sideloading iOS apps. Learn the other methods users turn to and why it's still dangerous. Continue Reading
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Definition
18 Mar 2025
What is security automation?
Security automation uses technology to remove high-volume manual processes from security operations to detect cyberthreats, which saves time by integrating different workflows into repeatable processes. Continue Reading
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Tip
17 Mar 2025
How to avoid and prevent social engineering attacks
Organizations and employees must both do their part to prevent and avoid social engineering attacks. A combination of security controls, policies, procedures and training is necessary. Continue Reading
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Tip
14 Mar 2025
How to secure AI infrastructure: Best practices
AI tools are creating an even greater attack surface for malicious hackers to penetrate. But there are steps you can take to ensure your organization's AI foundation remains safe. Continue Reading
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Definition
14 Mar 2025
What is pharming?
Pharming is a scamming practice in which malicious code is installed on a PC or server, misdirecting users to fraudulent websites without their knowledge or consent. Continue Reading
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Definition
13 Mar 2025
What is a pass-the-hash attack?
A pass-the-hash attack is an exploit in which an attacker steals a hashed user credential and -- without cracking it -- reuses it to trick an authentication system into creating a new authenticated session on the same network. Continue Reading
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Tip
12 Mar 2025
How to deal with unmanaged devices in the enterprise
Unmanaged devices present numerous risks, but how did they gain access to the network without any management in place? IT should learn how this happens and what to do when it does. Continue Reading
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Definition
11 Mar 2025
What is a rootkit?
A rootkit is a program or a collection of malicious software tools that give a threat actor remote access to and control over a computer or other system. Continue Reading
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Definition
03 Mar 2025
What is cyberstalking and how to prevent it?
Cyberstalking is a crime in which someone harasses or stalks a victim using electronic or digital means, such as social media, email, instant messaging (IM) or messages posted to a discussion group or forum. Continue Reading
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News
28 Feb 2025
Microsoft targets AI deepfake cybercrime network in lawsuit
Microsoft alleges that defendants used stolen Azure OpenAI API keys and special software to bypass content guardrails and generate illicit AI deepfakes for payment. Continue Reading
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Definition
28 Feb 2025
What is a watering hole attack?
A watering hole attack is a security exploit in which the attacker seeks to compromise a specific group of end users by infecting websites that members of the group are known to visit. Continue Reading
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Definition
27 Feb 2025
What is domain generation algorithm (DGA)?
A domain generation algorithm (DGA) is a program that generates a large list of domain names. DGAs provide malware with new domains to evade security countermeasures. Continue Reading
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News
27 Feb 2025
CrowdStrike: China hacking has reached 'inflection point'
In its 2025 Global Threat Report, CrowdStrike observed an increase in China's cyber capabilities, with a focus on espionage and 'pre-positioning' itself in critical environments. Continue Reading
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News
26 Feb 2025
NCC Group tracks alarming ransomware surge in January
NCC Group found ransomware activity in January surpassed previous monthly highs with 590 attacks, as one notorious gang experienced a notable resurgence. Continue Reading
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News
25 Feb 2025
Black Basta ransomware leak sheds light on targets, tactics
VulnCheck found the ransomware gang targeted CVEs in popular enterprise products from Microsoft, Citrix, Cisco, Fortinet, Palo Alto Networks, Confluence Atlassian and more. Continue Reading
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News
25 Feb 2025
Dragos: Ransomware attacks against industrial orgs up 87%
Ransomware attacks continue to be a major pain point for industrial organizations, as the sector has historically struggled with vulnerability management. Continue Reading
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News
21 Feb 2025
Palo Alto Networks vulnerabilities exploited in chained attack
The cybersecurity vendor urges customers to take immediate action to mitigate recently disclosed vulnerabilities that are being actively exploited in the wild. Continue Reading
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Definition
21 Feb 2025
What is application allowlisting?
Application allowlisting, previously known as 'application whitelisting,' is the practice of specifying an index of approved software applications or executable files that are permitted to be present and active on a computer system. Continue Reading
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Podcast
20 Feb 2025
Risk & Repeat: Salt Typhoon hasn't stopped hacking
Although the Salt Typhoon telecom breaches from last year appear to have been remediated, the Chinese state-sponsored threat group continues to target critical organizations. Continue Reading
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News
20 Feb 2025
CISA, FBI warn of Ghost/Cring ransomware attacks
Ghost is a China-based financially motivated ransomware group that has launched attacks against organizations in more than 70 countries -- including its own. Continue Reading
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Definition
20 Feb 2025
What is a checksum?
A checksum is a value that represents the number of bits in a transmission message. IT professionals use it to detect high-level errors within data transmissions. Continue Reading
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Definition
19 Feb 2025
What is an attack vector?
An attack vector is a path or means by which an attacker or hacker can gain access to a computer or network server to deliver a payload or malicious outcome. Continue Reading
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Definition
19 Feb 2025
What is email spoofing?
Email spoofing is a form of cyber attack in which a hacker sends an email that has been manipulated to seem as if it originated from a trusted source. Continue Reading
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News
18 Feb 2025
Palo Alto Networks PAN-OS vulnerability exploited in the wild
Palo Alto Networks says threat actors used a publicly available PoC exploit in attack attempts against firewall customers with PAN-OS management interfaces exposed to the internet. Continue Reading
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Definition
18 Feb 2025
What are social engineering attacks?
Social engineering is an attack vector that relies heavily on human interaction and often involves psychological manipulation of people into breaking normal security procedures and best practices to gain unauthorized access. Continue Reading
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Definition
18 Feb 2025
What is a botnet?
A botnet is a collection of internet-connected devices -- including PCs, servers, mobile devices and internet of things (IoT) devices -- infected and controlled by a common type of malware, often unbeknownst to their owners. Continue Reading
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News
13 Feb 2025
Salt Typhoon compromises telecom providers' Cisco devices
Salt Typhoon's latest campaign exploits older vulnerabilities in Cisco edge devices to gain access to the networks of several telecom companies, including two based in the U.S. Continue Reading
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Definition
13 Feb 2025
What is a denial-of-service attack?
A denial-of-service (DoS) attack is a security threat that occurs when an attacker makes it impossible for legitimate users to access computer systems, networks, services or other IT resources. Continue Reading
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News
12 Feb 2025
Fortinet discloses second authentication bypass vulnerability
Fortinet disclosed CVE-2025-24472 in an updated advisory that confused some in the infosec community because it stated that 'reports show this is being exploited in the wild.' Continue Reading
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Definition
12 Feb 2025
What is cyber hijacking?
Cyber hijacking, or computer hijacking, is a type of network security attack in which the threat actor takes control of computer systems, software programs and network communications. Continue Reading
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Definition
12 Feb 2025
What is antimalware?
Antimalware is a software program created to protect IT systems and individual computers from malicious software, or malware. Continue Reading
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News
11 Feb 2025
Apple zero day used in 'extremely sophisticated attack'
CVE-2025-24200 is a zero-day vulnerability that bypasses Apple's USB Restricted Mode in iPhones and iPads and was exploited in the wild against 'specific targeted individuals.' Continue Reading
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News
10 Feb 2025
Trimble Cityworks zero-day flaw under attack, patch now
CVE-2025-0994 is a high-severity deserialization vulnerability that enables remote code execution in unpatched versions of Cityworks enterprise asset management software. Continue Reading
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News
07 Feb 2025
Ransomware hits healthcare, critical services in January
Ransomware attacks against healthcare organizations in January reflect an increasing need for threat actors to adapt and get aggressive as defenders improve. Continue Reading
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Definition
07 Feb 2025
What is physical security and how does it work?
Physical security protects personnel, hardware, software, networks, facilities and data from physical actions and events that could cause serious loss or damage to an enterprise, agency or institution. Continue Reading
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News
06 Feb 2025
Unpatched.ai: Who runs the vulnerability discovery platform?
There is limited information on the AI-powered vulnerability discovery platform that emerged in December after it reported Microsoft vulnerabilities Continue Reading
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Definition
05 Feb 2025
What is a cyberthreat hunter (cybersecurity threat analyst)?
A cyberthreat hunter, also called a cybersecurity threat analyst, proactively identifies security incidents that might go undetected using automated security tools such as malware detectors and firewalls. Continue Reading
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News
05 Feb 2025
Zyxel won't patch end-of-life routers against zero-day attacks
Networking hardware vendor Zyxel has no plans to patch multiple end-of-life routers against new zero-day flaws and advises customers to replace affected devices entirely. Continue Reading
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News
04 Feb 2025
AMD, Google disclose Zen processor microcode vulnerability
AMD said CVE-2024-56161, which first leaked last month, requires an attacker to have local administrator privileges as well as developed and executed malicious microcode. Continue Reading
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News
04 Feb 2025
WatchTowr warns abandoned S3 buckets pose supply chain risk
WatchTowr researchers found that they could reregister abandoned Amazon S3 buckets and detail alarming ways that threat actors could exploit the attack surface. Continue Reading
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Podcast
30 Jan 2025
Risk & Repeat: DeepSeek security issues emerge
The introduction of DeepSeek's new generative AI models has been met with fervor, but security issues have created apparent challenges for the Chinese startup. Continue Reading
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News
29 Jan 2025
Google details adversarial AI activity on Gemini
Google identified APTs from more than 20 nations misusing its Gemini AI chatbot but noted that threat actors were unsuccessful in finding novel techniques or vulnerabilities. Continue Reading
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News
28 Jan 2025
DeepSeek claims 'malicious attacks' disrupting AI service
DeepSeek, which gained popularity recently for its AI platform, did not specify the cause of 'large-scale malicious attacks,' which continue to disrupt new account registrations. Continue Reading
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News
28 Jan 2025
Apple zero-day vulnerability under attack on iOS devices
Apple said the zero-day vulnerability, tracked as CVE-2025-24085, affects its CoreMedia framework and 'may have been actively exploited against versions of iOS before iOS 17.2.' Continue Reading
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Definition
28 Jan 2025
What is spyware?
Spyware is a type of malicious software (malware) that is installed on a computing device without the end user's knowledge. Continue Reading
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News
27 Jan 2025
Former CSRB members largely silent on dismissal
The Cyber Safety Review Board was investigating recent attacks by Chinese state-sponsored threat actor Salt Typhoon when DHS terminated all advisory board memberships. Continue Reading
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News
24 Jan 2025
AMD processor vulnerability inadvertently leaked early
The flaw was revealed when hardware manufacturer Asus published a patch for an 'AMD Microcode Signature Verification Vulnerability' to a gaming motherboard update page. Continue Reading
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News
23 Jan 2025
Zero-day vulnerability in SonicWall SMA series under attack
SonicWall released a hotfix for a critical pre-authentication remote code execution vulnerability in Secure Mobile Access 1000 products amidst reports of zero-day exploitation. Continue Reading
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News
23 Jan 2025
Eclypsium finds security issues in Palo Alto Networks NGFWs
Eclypsium researchers stressed how essential supply chain security is as threat actors increasingly target and exploit vulnerabilities in firewalls, VPNs and other edge devices. Continue Reading
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Definition
22 Jan 2025
What is hacktivism?
Hacktivism is the act of misusing a computer system or network for a socially or politically motivated reason. Continue Reading
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Tip
21 Jan 2025
How to prevent living-off-the-land attacks
Living-off-the-land attacks have been around since the dawn of modern computing, but they're drawing new attention from threat actors eager to find ways to penetrate defenses. Continue Reading
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News
16 Jan 2025
Threat actor publishes data of 15K hacked FortiGate firewalls
Although the threat actor published the alleged stolen Fortinet FortiGate firewall data this week, the data is apparently tied to older zero-day exploitation from 2022. Continue Reading