Crypto-Gram is a famous free monthly newsletter written by the security expert Bruce Schneier. The original is available at Bruce Schneier’s website; this is the same content in MOBI and EPUB format, suitable for e-book readers.

Crypto-Gram, April 2011 (in EPUB and MOBI format)
Crypto-Gram is a famous free monthly newsletter from security expert Bruce Schneier. The original it’s available at Bruce Schneier’s website;
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