Container Breakout: Cybersecurity Lessons Learned

Ian Coldwater, a leading expert on containers and container security, and Chad Rikansrud, a leading expert on mainframes and mainframe security, revealed they were the first to accomplish a mainframe container breakout — when a malicious or legitimate user is able to escape the container isolation and access resources on the host machine, such as file systems — at DEF CON 29 this year. In a conversation, they shared their motivations, the collaboration it took to achieve this feat, and what security lessons enterprises should take away from their efforts.

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