Garage door openers Did you know that when automatic garage door openers became popular, all garage door openers were to be opened using the same code? These were the first generation garage door opener systems. When second generation garage door openers came out, they improved the security so that there were more codes available, but it was still possible to open someone’s garage door with the same code as your own garage door. Fortunately, once it hit the market during the 90’s, garage securit...