Latch is a mobile service that lets you add an extra level of security to your online accounts and services. It gives you the control to switch your accounts off with a simple tap when you are not using them to help prevent any unauthorized use.
It is not limited to control a login mechanism, but you can create a latch to block any feature of a service, for instance, making money transfers in a banking website.
You can find more information about Latch on their official website.
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