This is a Lock icon. We've made it in iOS style, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 12,700 icons, all in the same style and quality.
Whenever you’re looking for top secret information because of some strange reason, everything that you’re looking for is most likely behind a lock. So start there—find where the locks are and you’ll find where the secrets are. Yup, that’s a world hack, which is also known as a painfully obvious idea. When it comes to the key or the code, you can figure that out yourself. But if there’s anything we’ve learned from binge-watching any TV show ever, there’s a good chance that it’s either under the doormat or under the clay pot. If it is a code or a password, try the time-tested “1234” or “password.” It could also be the person’s birthday, or “pussy,” which ranks eighth on the list of Most Common Passwords. We wish we’re kidding.
Surely, the most frequently used lock icon is the padlock. The earliest padlocks known to man date to the Roman Era, where it was tapped by merchants traversing across Asian borders. It found its name years later in England. The padlock was used to keep livestock within their den, which is also called paddock.
Today, locks are no longer limited to detaining rebellious sheep. Various kinds have sprung for different uses, like keeping rebellious humans away from our text messages.
Other kinds of icons related to all things safe and secure are: