[sudhirj]

You did well to have billing alerts enabled. Exactly the same thing happened to be, but I didn't notice for three months - no emails because I'd created an account and domain for a side project. Didn't notice anything on my card because the charge had been declined, but my bank didn't contact me. Finally found out because I knew the local AWS rep (was the relationship manager for the accounts we use at work). Had to apologise and explain the situation in detail to AWS and they forgave the bill. That was tens of thousands of dollars.

[sudhirj]

For those talking about this being a 'serverless' problem or not, think they point is that it's a lot easier to shoot yourself in the foot. Great power + responsibility, etc. On regular servers (outside of unbounded autoscaling) mistakes cost a flat rate.

[21]

Not necessarily.

With a regular server you could go viral, your server dies, so you lose also without a bound in lost business/good will/whatever.

Also need to take into account the time/effort spent on making the regular server scale, albeit this is also a relatively flat rate.