Black Widow could hack a terminal to open them, but if there was no terminal, then youre not getting in (very much not fine). Works great no issues. The only complaint that I have with the A4000 would occasionally be the fit. I had a pair of the wireless buds without the neck wire but lost them, so I purchased this version hoping I could hang around my neck when not in use. The height is listed as 11. They turned out to be weird in sizing and fit consistency. works as expectedNice loud alert noise. It replaced a luggage rack I had for about 20 years - what a difference! I was a little daunted when I opened the box because there are several instructions to follow. But I ordered a robe not a cardigan to be worn outside the house.