Shell

Not the one in the sea but one somewhere in your computer. One thing about swimming in the sea is the ability of the winter swimmers to converse with each other. It is very easy to chat away with people who you have never met before in your life. Today I was talking to a software designer who asked me if I knew about log4j. I said that I never heard of it, but seemingly it is the next great threat to our happly web surfing life. After he told me about it I saw it on CNN. Another reason to back up your important files away from your computer.

 https://edition.cnn.com/2021/12/15/tech/log4j-vulnerability/index.html