AI-driven impersonation scams surge 1,400%, causing record $17 billion crypto losses in 2025
Analytics firm Chainalysis reported that cryptocurrency users lost $17 billion to scams and fraud in 2025, with impersonation schemes showing a 1,400% year-over-year increase. AI-enabled scams were reportedly 4.5 times more profitable than traditional variants, as criminals used deepfakes, automated tools and synthetic content to impersonate trusted entities.
What happened
Chainalysis reported in its 2026 Crypto Crime Report that $17 billion in cryptocurrency was lost to scams and frauds in 2025.
Impersonation scams recorded a 1,400% year-over-year increase, with criminals shifting from broad 'spray-and-pray' tactics to targeting fewer victims but extracting significantly larger sums by posing as trusted entities.
AI-enabled scams were 4.5 times more profitable than traditional variants, with criminals using deepfakes, automated chat tools and synthetic content to fabricate convincing 'support agents,' 'government notices' and 'trusted insiders' at scale.
Reported impact
$17 billion in total cryptocurrency losses to scams and fraud in 2025.
Average payment sizes from impersonation scams climbed sharply as criminals extracted larger sums per victim.
Index analysis
Impersonation schemes and AI-generated scams are now overtaking conventional cyber-attacks as the primary engines of crypto theft, reshaping where the largest crypto scam losses come from in the sector.
The shift reflects criminals adapting methods to exploit human psychology rather than only technical vulnerabilities.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.