Malware and extortion

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A man with dark hair, a beard, and a serious expression, sitting on a couch in a dimly lit room, looking at his laptop computer. The room has dark wooden walls with two vertical gray stripes, and there is an open notebook and a tablet on the wooden table in front of him. There are pillows behind him on the couch.
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What is malware?

Malware (malicious software) is when a criminal puts software on one of your devices to steal information, spy on you, or cause damage, without your permission. This includes viruses, worms, trojans, spyware, adware, and ransomware, which locks or encrypts your device or data and demands payment to restore access. 

Criminals also use other forms of ransom or extortion without software, threatening to share sensitive information, images, or videos about you unless you pay or meet their demands.

Get help with malware, ransomware, or extortion now

Read our step-by-step guides to learn about, recover from, and contain malware, ransomware, and extortion threats.

  • Icon of a computer monitor with a skull and circuit lines symbolizing cybersecurity threat or malware.

    Malicious software

    One of your devices has been infected with malicious software.

  • Icon of a folder with a lock and chain, indicating security or restricted access.

    Encrypting ransomware

    You can use your device and see your files, but they have been encrypted and the file extensions changed.

  • Icon of a computer monitor with a lock and chain symbol, representing cybersecurity or data protection

    Screen-locking ransomware

    A ransom note appears as soon as you turn on your device and you can't use the device in any other way.

  • Icon of a skull above a folder labeled "TOP SECRET" on a yellow background.

    Content for ransom

    Someone has gained access to sensitive information about you and is trying to get you to pay (or do something) to stop them sharing it.

  • Icon of a camera and alert symbol on a yellow background.

    Sextortion (extortion or blackmail using intimate images)

    Someone threatens to share intimate images or videos of you unless you pay money or meet their demands.

  • Icon of a hand holding a smartphone against a yellow circular background.

    I'm not sure what's happened, but something isn't right

    Our free helpline helps individuals and sole traders understand, contain, and recover from cyber attacks and incidents.

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Speak to an expert

Some cybercrime cases require a helping hand or further investigation. If you have spoken to our chatbot, read our guides, and still need more help with your issue, our chatbot can connect you to a real cybersecurity expert.

*Please note our volunteer helpline service is currently only available if you live in the UK or USA. We aim to get back to your request within 3 days.

Live in the UK?

If you are located in the United Kingdom, we have specific guides tailored to your region.

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Our chatbot service and guides are completely free and can be accessed wherever you are in the world.

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