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What is a Key Fob?
Key fob is a small electronic device used to replace traditional keys to operate different kind of locks. Despite their size they are quite a technological wonder and much more secure than traditional keys.
Key fobs operate using Radio Frequency Identification (RFID) technology, offering keyless entry for cars and buildings. They were invented back in 1983 and since then they have progressed a lot and became a common tool for electronic door access.
They mainly use passive radio frequency which uses electromagnetic waves to exchange data and unlock doors
Inside the key fob there is a chip and a tiny antenna that communicates with the RFID reader in the car’s lock system and when you press the button on the fob it sends a signal to the reader device and when there is a match between them the car’s door unlocks.
Key fobs are versatile and programmable, not only they can lock and unlock doors but they can also be programmed to open your car’s trunk, turn on/off the alarm and even start the engine.
Are Key Fobs Secure?
While no security system is entirely foolproof key fobs offer a significantly better security compared to traditional keys.
They certainly provide much more comfort and with technology that is constantly evolving, users can feel confident about their performance.
Car manufacturers continuously improve the security of key fobs to stay ahead of car thieves some premium car brands now use key fobs that integrate biometric authentication like fingerprint recognition into their systems and by that adding an extra layer of security.
Despite these developments, there are some new smart gadgets that can mimic the RFID signal and experienced car thieves are using them to steal cars, so it is highly recommended to stay sharp and be caution when using your car fob in public.
Also storing key fobs in a metal container can block signals and protect against relay attacks.