Re: Use offline encryption/decryption
Using a non-networked computer does not protect you from having your messages recorded by a hardware keylogger. If you become a "person of interest," a small keylogger can be installed inside most computer keyboards in 5 minutes. Maybe by someone posing as a gas safety inspector to gain access to your home while you are out. Such keyloggers act as a hidden wifi hotspot while powered, which can then transfer your last few thousand keystrokes to anyone within wi-fi range over the following few days/weeks/months.