2021
Lacey - Linux Security Fundamentals
    905C7A4D1314AAC7163F27EAE1624D69
    75D04A86945F0A18648A752544867DE3
    ! too short
2020
Rice - Container Security
    55B2BC445F9079B0B70B500B1C0D884D
Madden - API Security in Action
    8BBE09E0BA141F9C05E539ECB3C593AD