Leaderboard
898All-time rank
R

Royal.io

Jun 23, 2026

$263K
Lost
$263K
Recovered
$0
Net loss
$263K
Unrecovered0% recovered

io's legacy royalties contract (Royal1155LD) on Polygon was exploited via a flash loan combined with 100 zero-value ERC1155 transfers that manipulated the beforeLdaTransfer reward accounting hook through a logic flaw in the pro-rata royalty accounting function.

Target
Other
Classification
Token & Share Accounting
Technique
Incorrect Share Accounting
Attribution
Unknown
Chains
Polygon

Event timeline

  1. Jun 23, 2026
    Exploit executed — $263K drained via incorrect share accounting
  2. Attributed to Unknown
  3. Recovery status Unrecovered 0%

Data credits

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