A storage system for meme-based cryptocurrency Dogecoin was hacked on Wednesday night. Users began reporting their Dogewallets had been compromised on the forum doges.org. Millions of Dogecoins were stolen.

The currency started off as a joke; the coins were based off the Shiba Inu meme that became popular on Reddit and 4chan. Unfortunately, even joke currencies that have real value can be compromised, and Dogecoin’s hack is a reminder that anything stored online—currency or otherwise—is susceptible to theft.

Users who were affected will allegedly get their money back. With each coin valued at around $0.00059, only about $12,000 was lost.

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