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A comment on A startup’s Firebase bill suddenly increased from $25 to $1750 per month. Parent comment

Re:A startup’s Firebase bill suddenly increased from $25 to ... by corford on Wednesday May 17, 2017 @08:20AM (#14357673)
My personal bank sort of gives me that with their fraud protection. If a one off huge charge appears from a company that regularly bills me (but at much smaller amounts), their fraud system sends a text asking if I want to authorise or block the charge.

The second bank account is really more for protecting you against black swan events. If all your accounts are under the same bank and have the same owner, there's nothing stopping the bank taking funds from one of your accounts to make up for shortfalls in another.

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Re:A startup’s Firebase bill suddenly increased from $25 to ... by yeukhon on Wednesday May 17, 2017 @08:47AM (#14357866)
CaptialOne does this pretty well. So far it is the only bank I have come across would alert me they are blocking the transaction for a few days so I have a chance to review and if I don't they will release the block. Every 6 months or so they have someone called me up to verify recent transactions.
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Re:A startup’s Firebase bill suddenly increased from $25 to ... by snuxoll on Wednesday May 17, 2017 @09:55AM (#14358430)
Hell, their mobile app alerts me the moment a recurring charge posts for a different amount than normal, if I put my NYT delivery on hold for travel or something I can guarantee the next two months I'll get an alert to review the transaction (though they don't outright block it)
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