🔒 Locked With 🔑 Key emoji is the picture of a 🔒 Locked padlock and the 🔑 Key, which is supposed to unlock it — this makes much more sense than the combination shown on 🔒 Locked With 🖊 Pen emoji. As for meanings, just like in case with all the other emoji with padlocks, they are all closely related to different privacy and security issues (including those on the internet).
Examples of using
“Changed the locks in my house 🔐”
“I’ll find a key to this secret 🔐”
How to type