How to tell if you’ve been hacked by Russia, China, or North Korea

WannaCry had North Korea’s fingerprints all over it. The massive ransomware attack that hit over 150 countries last week reportedly contained code linked to other cyber crimes allegedly perpetrated by the Hermit Kingdom. But while it might take weeks or months for researchers to identify the culprit through forensic analyses, another set of clues already points to North Korea: motive.

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There are rarely smoking guns when it comes to major cyber attacks, but clear patterns and evidence have emerged that indicate which foreign governments are responsible for the biggest ones. Would Russia or China have tried to take down hospitals in the U.K. for a measly $300? Probably not. China veers more towards stealing military and trade secrets, while Russia prefers operations that destabilize foreign governments. But North Korea will definitely hack for cash.

Here’s a quick guide to distinguishing cyber threats from North Korea, China, or Russia:

How to tell if you’ve been hacked by Russia, China, or North Korea