By Johannes B. Ullrich, Ph.D. Securing Exchange Online
https://isc.sans.edu/forums/diary/Securing+Exchange+Online+Guest+Diary/26600/
Decoding Corrupt BASE64
https://isc.sans.edu/forums/diary/Decoding+Corrupt+BASE64+Strings/26606/
Fortinet VPN Default Setting Problem
https://securingsam.com/breaching-the-fort/
Single Use Credit Cards Numbers
https://www.helpnetsecurity.com/2020/09/25/privacy-cards/
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