EOSIO.SG testing account sym111111add was compromised and used on November 12, 2018 to attack the AirDropsDAC contract. The attacker misappropriated HireVibes tokens (HVT) and other airdrop tokens, selling portions of the stolen HVT on Newdex and transferring profits to controlled accounts.

A large number of HVTs in the AirDropsDAC contract account were transferred to the sym111111add account under abnormal operation, the account was then exchanged for 2,514 EOS at Newdex, which was subsequently transferred to the gizdkmjvhege account.