A bug centering around a new Ethereum token, GasToken, which was enabling abuse on cryptocurrency exchanges, appears to have been resolved. The details are provided in a report originally published on November 13, 2018, that discussed how the bug was exploited by attackers, and what digital platforms could do if they wished to protect their hot wallet funds.
It was unclear which exchanges could or could not be affected by the bug. Thus, private disclosures were issued to “as many exchanges as possible” according to a Medium post. While it was determined that most of these exchanges were not in any danger, all vulnerable exchanges have since instilled the proper protections. At press time, the bug is no longer considered a threat.