Hi, I'm Charlie from Aikido, as mentioned above. Yes, we detected it automatically, and I alerted Josh to the situation on BSky.
There's no reason why Microsoft/npm can't do what we're doing, or any of the other handful to dozen companies that do similar things to us, to protect the supply chain.
The dev later said that Charlie notifying him probably shaved off some very important time for the remediation.
So in this case 2 different companies found it using automated tech before anyone else