Kaspersky official blog

We have previously discussed what VPN is. Now let’s review its implementations and their advantages and drawbacks.

What exactly is a VPN? There has been a lot of buzz around it, but why do we need it?

During WW2 modern cryptography principles were often coupled with ‘amateur’ ciphering methods. Curiously, the latter ones often proved to be equally reliable

Virtual Private Networks, or VPNs for short, have become increasingly essential of late as we more often access sensitive data from remote locations — and as the threat of having our

C3RB3R ransomware is attacking Synology network-attached storage devices running outdated operating systems and encrypting the files stored on them. We explain which NAS devices are at risk, how to protect yourself from the attack, and what to do if your data has already been encrypted.

Christopher Nolan’s The Odyssey has wrapped up its triumphant run in theaters, but it won’t be available digitally until November 17. That makes it the perfect bait for malware like MovieReaper, which spreads through torrents. Let’s see what cybersecurity lessons we can learn from the story of the cunning king of Ithaca — and how to avoid falling victim to a Trojan horse yourself.

On October 21, two PHP vulnerabilities (CVE-2026-109618 and CVE-2026-109619) were disclosed, affecting nearly 70% of websites worldwide. But if you think this’s only an admins’ headache, read on: we explain why your photos, music, archives, games, NAS and smart-home systems may be at risk, and how to protect your data and devices.

An analysis of key characteristics of AI agent-driven cyberattacks, why open-source models are sufficient to execute them, and what measures can help defend an organization.

Because of a supply chain attack, some Windows users unknowingly downloaded a Monero crypto miner along with their Hola Browser installation.

Our experts took a road trip through Mexico ahead of the World Cup to test whether it’s safe to connect to public Wi-Fi access points in major cities.

Kaspersky analyzed what children are interested in on the Internet today

How the AirSnitch vulnerability family threatens corporate networks, and what changes you need to make to your network architecture and settings to stay protected.

What corporate security teams should do about the “viral” AI agent.

NFC relay attacks, pre-installed Trojans, and other nasties ruining the Android experience in 2026.

Our Android apps are no longer available on Google Play. We explain how to download, install, and update them by alternative means.

Eight digital New Year’s resolutions you absolutely need to keep.

We’ve identified a new infostealer named Stealka, which masquerades as pirated software and game mods. It targets data stored inside browsers, locally installed applications, and crypto wallets.

How automation turns legitimate tools into a channel for malware delivery.

A new wave of ClickFix attacks spreading a macOS infostealer are posting malicious user guides on the official ChatGPT website by piggybacking the chatbot’s chat-sharing feature.

The Whisper Leak attack allows its perpetrator to guess the topic of your conversation with an AI assistant — without decrypting the traffic. We explore how this is possible, and what you can do to protect your AI chats.

We examine how popular Canon printers could become a foothold for attackers within an organization’s network.