Crypto Wallet Security: 12 Steps After $713M Stolen [2026]

More than $3.4 billion in cryptocurrency was stolen in 2025, according to Chainalysis’s 2026 Crypto Crime Report, one of the worst years on record for theft. Of that total, $713 million came directly from personal wallet compromises: seed phrases typed into fake sites, malware that siphoned private keys, and browser extensions that quietly drained approved tokens. Chainalysis counted roughly 158,000 of these incidents hitting about 80,000 victims, an average loss near $4,500 each. Attackers have shifted their aim. Personal wallets made up just 7.3% of stolen crypto value in 2022. By 2024 that share had jumped to 44%. It settled near 20% in 2025, mostly because one outsized exchange hack skewed the annual total, not because attacks on individuals slowed down.

The phishing side tells a similar story at smaller dollar amounts. Scam Sniffer tracked $83.85 million in wallet-drainer losses across 106,106 victims in 2025, down 83% from roughly $494 million the year before, which works out to about $790 per victim. Fewer huge scores, far more small ones. MetaMask’s June 2026 security report adds another data point: its partner Blockaid flagged 65.4 million address-poisoning attempts since January 2025, which is why MetaMask shipped live address-poisoning detection this year.