The Decoder, citing CNBC, reported on 15 October 2026 that Bank of America brought in 1,000 outside contractors to patch software holes that AI models such as Anthropic's Mythos turned up. CEO Brian Moynihan said they work next to 3,000 of the bank's own employees and have done so since the second quarter. The Decoder adds that the bank is among the first major US companies to give such a headcount.
For the third quarter, Moynihan gave a spending total of a few hundred million dollars. That total also covers anti-money-laundering requirements, and he gave no figure for patching alone. The sources do not say how many flaws are fixed, how many remain, or whether the 3,000 staff work on this full time. Moynihan expects patching costs to fall over time but gave no timeline. The Decoder says Anthropic shared Mythos only with select partners in April and said it had found thousands of serious flaws.
The headcount shows how many people one bank has assigned to this work, not what it costs. Finding a flaw and fixing it are separate jobs, and the fixing here falls to people. Software buyers could ask vendors how fast they patch, how large their backlog is, and who pays for repairs.