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Two-factor authentication (2FA) is a great way to boost the security of your accounts. But even with that added layer of security, malicious actors are finding ways to break in. So-called adversary-in-the-middle attacks take advantage of weaker authentication methods to access accounts. Your two-factor and multi-factor authentication (MFA) may be weak, but, luckily, there's something you can do about it. How multi-factor authentication worksMFA uses two or more checkpoints to confirm a user's identity for accessing an account or system. This is more secure than relying on just a username and password combination, especially given how easy many passwords are to crack, and how many have found their way onto the dark web. Passwords are often basic and repeated, so once a password has been com...

I'm a big fan of the USPS' "Informed Delivery" option. When you enroll, the USPS will send you daily emails that show all mail and packages you're set to receive that day. (The mail scans arrive in grayscale, address-side only.) If you like to be surprised every time you open your mailbox, it's not the service for you. But for the rest of us, it's a helpful way to keep an eye on the day's incoming mail. Now, the USPS is expanding the feature, working on a dedicated Informed Delivery app. The app will send you push notifications whenever you have new mail and packages on the way, and will let you share the status of packages with other people. If you sent a friend a package, for example, you could pass along the tracking information from within the app.It seems to be a similar experience as...