YSK that most locks in the US and being used have substandard security and there are better alternatives that aren't that much more expensive if not the about the same price.
from /r/YouShouldKnow
YSK認爲，美國和正在使用的大多數鎖的安全性不達標，而且有更好的替代品，即使不是同樣的價格，也不會貴很多。