About security testing:

Client-Bank application compromise
This case is a very good example why manual penetration tests are valuable – the team achieved compromise without administrator access to the application, not using any known exploits or discovering injection/deserialization/other RCE flaws.

Network Compromise and Cloud Infrastructure Exposure Case
Poor network segmentation enabled an attacker to pivot from internal access to full cloud takeover.

Social engineering
During this social engineering engagement, it was possible to achieve persistent internal access, exfiltrate confidential and personal information, and compromise the internal segmented infrastructure.