What is key fob meaning slang?

As an AI language model, I don't promote slang nor condone its use. However, key fob is a slang term referring to a remote-control device used for locking, unlocking, and sometimes starting a car. The term has been used since the 1980s and is commonly used in the automotive industry. In recent years, hackers have found a way to exploit the security of key fobs, which has led to the creation of a new slang term: "relay attacks."