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Ransomware

200 articles

New ransomware trends: hijacking Active Directory instead of encrypting data
  • Ransomware

New ransomware trends: hijacking Active Directory instead of encrypting data

In April, our experts investigated the PAYLOAD campaign — where the leverage wasn’t data encryption but a malicious AD group policy object.

  • Editorial Team

  • October 9, 2026

Why ransomware is now after your data — and how to protect your home storage
  • backup

Ransomware now taking aim at personal backups

Personal backups and home NAS are now in cybercriminals’ crosshairs. We break down exactly how hackers encrypt your data — and how you can stop them.

  • Tom Fosters

  • March 31, 2026

Ransomware attacks on schools and colleges: how to protect educational infrastructure
  • Education

Why ransomware attacks on educational institutions are sharply rising

Educational institutions are increasingly falling victim to ransomware attacks. We look at some real-world incidents, explain their causes, and discuss how to mitigate risks to academic infrastructure.

  • Kaspersky Team

  • March 6, 2026

Beware of the fake KeePass password manager
  • password manager

Lessons learned from the trojanized KeePass incident

A popular password manager was modified to allow attackers to steal passwords and encrypt users’ data. How to protect home computers and corporate systems from this threat?

  • Stan Kaminsky

  • May 28, 2025

Ransomware group uses ClickFix to attack businesses.
  • Ransomware

How Interlock attacks IT specialists with fake CAPTCHAs and ClickFix

We explore how cybercriminals are targeting IT specialists searching for a popular network scanner, using the Interlock ransomware attack as an example.

  • Alanna Titterington

  • May 16, 2025

The ransomware landscape in 2025
  • Ransomware

Five new reasons not to pay ransoms

How the situation with ransomware attacks on companies has changed, and why paying a ransom has become an even worse and more useless idea in 2025.

  • Kaspersky Team

  • May 12, 2025

Protecting against attacks in ZIP, RAR, CAB, MSI, ISO and other archives
  • archivers

Security measures for handling archive files in organizations

Archives are being used in targeted phishing and other attacks on organizations. What tools, settings, and policies can mitigate the threat?

  • Stan Kaminsky

  • April 10, 2025

Trojan.Arcanum — a new trojan targeting tarot experts, esotericists, and magicians
  • threats

Tarot and cyberthreats: a new Trojan for fans of the supernatural

New malware targets magic enthusiasts — sending stolen data to an “astral cloud server”.

  • Kaspersky Team

  • April 1, 2025

Fending off ransomware attacks that exploit corporate IoT devices.
  • Ransomware

A ransomware attack through an IP camera

Fending off ransomware attacks that exploit corporate IoT devices.

  • Stan Kaminsky

  • March 31, 2025

Fog ransomware publishes victim’s IP addresses
  • Ransomware

Fog ransomware publishes victim’s IP-addresses

Cybercriminals behind the Fog ransomware publish leaked data along with the IP addresses of attacked computers.

  • Kaspersky Team

  • March 21, 2025

Update your VMware ESXi products now to patch these three critical vulnerabilities from 2025
  • vulnerabilities

Three VMware vulnerabilities: key risks and urgent patches

Reasons for updating your ESXi infrastructure ASAP, and enterprise threats that VM escape poses.

  • Stan Kaminsky

  • March 13, 2025

Main vulnerabilities from Microsoft's March Patch Tuesday
  • vulnerabilities

Six Microsoft vulnerabilities being actively exploited

Microsoft’s March Patch Tuesday fixes several vulnerabilities that have already been used in the wild. Details are not clear at the moment, but it’s worth installing the patches ASAP.

  • Editorial Team

  • March 12, 2025

The complete story of the 2024 ransomware attack on UnitedHealth
  • Ransomware

UnitedHealth ransomware attack

A year after the ransomware attack on healthcare giant UnitedHealth Group, we’ve compiled all publicly available information about the incident and its aftermath.

  • Alanna Titterington

  • February 20, 2025

Ransomware attacks in 2024
  • anti-ransomware

Ransomware: the most notable attacks of 2024

$3 billion worth of damage to healthcare insurance giant, schools closed, soccer club players’ data leaked, and other ransomware incidents in 2024.

  • Alanna Titterington

  • January 31, 2025

How ShrinkLocker ransomware leverages BitLocker
  • Ransomware

ShrinkLocker ransomware employing BitLocker for encryption

Our experts have discovered ransomware they’ve dubbed “ShrinkLocker”, which encrypts infected computers’ drives using BitLocker — a utility built into Windows.

  • Alanna Titterington

  • June 13, 2024

The biggest ransomware attacks of 2023
  • Ransomware

Ransomware: the most high-profile attacks of 2023

A look at the biggest ransomware attacks of 2023.

  • Alanna Titterington

  • February 20, 2024

Authentication bypass exploit in GoAnywhere MFT
  • vulnerabilities

Critical vulnerability exploit in GoAnywhere MFT

Time to update Fortra GoAnywhere MFT: an exploit has been developed for a critical vulnerability that allows attackers to bypass authentication and create admin accounts.

  • Alanna Titterington

  • January 26, 2024

Where Linux is in your home, and how to protect Linux devices from hacking
  • Linux

Three common attacks on Linux in homes

Even if you don’t know it, you probably have devices running Linux at home — and they need protection too! Here are three Linux threats that even IT professionals often forget about.

  • Stan Kaminsky

  • September 27, 2023

The attack via Progress MOVEit Transfer
  • Ransomware

The MOVEit hack and its aftermath

What the MOVEit Transfer hack can teach non-users.

  • Stan Kaminsky

  • July 11, 2023

Safeguards against firmware signed with stolen MSI keys
  • UEFI

MSI leak: tips for users, organizations, and developers

Now anyone can sign device firmware with MSI private keys. This represents a long-term persistent risk to be considered by all users.

  • Stan Kaminsky

  • May 30, 2023

The most popular ways to launder cryptocurrency
  • Ransomware

How cybercriminals launder dirty crypto

Crypto mixers, nested exchanges, cash-out and other crypto-laundering methods used by ransomware operators.

  • Alanna Titterington

  • May 12, 2023

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