[avianlyric]

Monzo’s system is a little unique in that it runs fraud and AML checks in real-time while the transaction is being processed, and thus able to block a high risk transaction before it completes. As a result Monzo is frequently able to return stolen funds to victims.

Other banks run their AML systems in batch at the end of the day, and will only freeze an account after the money has left.

So yeah, you’ll see a lot more people complaining about Monzo, because their money will be frozen while they’re trying to exfiltrate it. That doesn’t mean Monzo has an unusually high false positive rate, it just means that people are used to being able to get away with fraudulent behaviour, and have their accounts frozen empty. Rather than being stopped mid-act and having their accounts frozen while they still contain illegitimate funds.