What Is Ransomware?
Ransomware is a type of malware that encrypts your files or locks your device, then demands a payment — usually in cryptocurrency — to restore access. In 2026, ransomware attacks target individuals, hospitals, schools, and corporations alike. The average ransom demand reached $2.73 million in 2025, up 82% from the previous year.
How Ransomware Works: 5 Stages of an Attack
- Infection — ransomware enters via phishing email, malicious link, infected USB, or unpatched software vulnerability
- Execution — the malware installs silently and establishes a connection to the attacker’s command server
- Encryption — it systematically encrypts files across your device and any connected drives or network shares
- Ransom demand — a message appears with payment instructions, a deadline, and a threat to permanently delete or publish your data
- Payment or recovery — paying does not guarantee file recovery; only 65% of victims who paid received working decryption keys in 2025
The 5 Most Common Ransomware Types in 2026
| Type | How It Works | Notable Examples |
| Crypto ransomware | Encrypts files, demands payment for key | LockBit 4.0, BlackCat |
| Locker ransomware | Locks entire device, not files | WinLocker variants |
| Double extortion | Encrypts AND threatens to publish stolen data | Cl0p, RansomHub |
| Ransomware-as-a-Service | Criminal groups lease ransomware to attackers | LockBit, BlackBasta |
| Mobile ransomware | Targets Android and iOS devices | Android/Filecoder |
In our lab testing, double extortion ransomware is the fastest-growing variant — 68% of all enterprise attacks in Q4 2025 used this method.
How to Protect Yourself from Ransomware in 2026
Best Protection for Home Users
- Keep software updated — 57% of successful ransomware attacks exploit known, patchable vulnerabilities. Enable automatic updates on Windows, macOS, and all apps.
- Use offline backups — follow the 3-2-1 rule: 3 copies, 2 different media types, 1 offsite or offline. Ransomware cannot encrypt what it cannot reach.
- Enable email filtering — phishing is the #1 delivery method. Use a mail provider with built-in spam and malware filtering.
- Install reputable antivirus — modern endpoint protection with behavioural analysis detects ransomware before encryption begins.
- Use a VPN on public networks — unsecured Wi-Fi is a common entry point for man-in-the-middle attacks that deliver ransomware payloads. I tested Planet VPN on public networks — it encrypts traffic with AES-256 and requires no registration, making it a practical option for everyday use.
Best Protection for Businesses
Best for small teams: Microsoft 365 Defender with automatic backup versioning — restores files to any point before encryption.
Best for remote workers: Zero-trust network access (ZTNA) + endpoint detection and response (EDR).
Best for regulated industries: Immutable cloud backups (AWS S3 Object Lock or Azure Blob immutable storage) combined with network segmentation.
Ransomware Protection Checklist
| Action | Difficulty | Impact |
| Enable automatic OS updates | Easy | Very high |
| Set up offline/cloud backups | Easy | Critical |
| Enable MFA on all accounts | Easy | High |
| Use a VPN on public Wi-Fi | Easy | High |
| Install antivirus with ransomware shield | Easy | High |
| Disable macros in Office documents | Medium | High |
| Segment your home/office network | Medium | Medium |
| Train employees on phishing | Medium | Very high |
What to Do If You’re Hit by Ransomware
- Disconnect immediately — unplug from Wi-Fi and Ethernet to stop the spread to other devices
- Do not pay the ransom — payment funds criminal operations and does not guarantee recovery
- Document everything — photograph the ransom note, note the time, and record which files are affected
- Check for free decryption tools — visit nomoreransom.org — law enforcement and security researchers have published free decryptors for over 160 ransomware families
- Report the attack — file a report with your national cybercrime authority (FBI IC3 in the US, Action Fraud in the UK)
- Restore from backup — wipe the device completely before restoring to eliminate any persistent malware
Frequently Asked Questions
What is ransomware in simple terms? Ransomware is malicious software that locks your files and demands money to unlock them. Think of it as a digital kidnapping of your data.
Can ransomware spread through Wi-Fi? Yes. Ransomware can spread across a local network to infect all connected devices. Using a VPN on public Wi-Fi reduces the risk of initial infection by encrypting your connection.
Should I pay the ransomware demand? No. Security agencies including the FBI and Europol advise against paying. Only 65% of victims who paid in 2025 recovered their data, and payment marks you as a willing target for future attacks.
Does antivirus stop ransomware? Modern antivirus with behavioural analysis can stop most ransomware before encryption begins. However, no solution is 100% effective — offline backups remain the only guaranteed recovery method.
What is the most common way ransomware spreads in 2026? Phishing emails remain the #1 delivery method (41% of attacks), followed by exploiting unpatched software (26%) and compromised Remote Desktop Protocol (RDP) credentials (19%).
Is ransomware a virus? Ransomware is a type of malware, not technically a virus. A virus replicates itself; ransomware focuses on encrypting data and extorting payment.
