Bit of an odd Email incident

[tw]

Originally Posted by xoxoxoBruce

If they are doing all of them is it for the NSA worried about nogoodniks sneaking secret plans with pictures of words?

Nobody need put words in those pictures. It is called lossy compression. A picture can easily be changed (byte by byte) and you would never know the difference. Even undecipherable color pixel changes, that nobody would notice, can be secret messages or computer code to compromise your data. Pictures (ie lossy compression) can easily compromise computer security.