"Security isn't a dirty word, Blackadder. Crevice is a dirty word, but security isn't." - General Sir Anthony Cecil Hogmanay Melchett
Security is something that the British army likes to believe it has in abundance. A quick study of possible concerns around this can be identified as:
1 - Squaddies posting operational details on Facebook, Whatsapp, Snapchat, Tindr, Grindr, etc
2 - Squaddies posting sensitive equipment details on the above, in the form of pictures (that picture from Iraq with a full spot map of Basrah in the background, completely legible... fannies)
3 - Squaddies telling the entire internet in general, what they're doing and where they are, usually in the bid to get a sniff of some clunge
4 - Confidential Waste bags, filled with highly confidential waste, removed and emptied by Eastern Bloc nationals hired by Sodexho who are fully vetted and trustworthy
5 - MOD PR frequently revealing stuff it shouldn't in a bid to get fame and glory
6 - Squaddies down the local pub telling anyone who'll listen, who they are and what they do, and getting lashed in the process with no sign of a designated 'Shark Watch' bod on duty... C'mon, we all saw the video on it...
7 - Officers doing everything wrong that the squaddie does, but on a much higher level of professionalism, including organising full troop movements over insecure personal mobile phones, etc
8 - Generally, knowing deep down, that whatever we think we've got secure, the Russians actually found out about quite some time ago and that, hey, you can't keep anything a secret these days, so why bother?