Threat Descriptions

Technical details and removal instructions for threats identified by Labs.

Latest descriptions

Browse through our most recently published or updated Threat Descriptions, which provide technical details and removal instructions for threats that affect computers and mobile devices.

Latest Descriptions

Recently published or updated threat descriptions.

Description Index

An alphabetical index of all published threat descriptions.

Notable Threats

Threats that stood out as a technological or historical milestone.

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What is a Trojan and why is it harmful? Learn more about trojans and how they work.