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Senior-engineer security lapses and basic cloud misconfigurations

March 23, 2026r/AskNetsec

In r/AskNetsec, a discussion frames common security failures as experienced engineers making basic mistakes like misconfigured S3 buckets, highlighting gaps in review culture and operational discipline.

What's the most common security mistake you've seen from people who should honestly know better?
We were doing an internal review after a minor incident - nothing catastrophic, but annoying enough to warrant a post-mortem.
And the root cause? A senior engineer, 11 years in the industry, had left an S3 bucket misconfigured for about 3 weeks.
r/AskNetsec
cloud-misconfigprocess

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