Most people already use a second step when logging into financial accounts, which is good, and most of them are using the weakest available version of it, which is worth fixing. A code sent by text is far better than nothing. It is also the one form of second factor that can be defeated without touching your devices at all, because it depends on a phone number, and a phone number is an account held by a carrier rather than a secret held by you. The upgrade is to an authenticator app, which generates codes on your device from a shared secret, or to a hardware key if you want the strongest option. Neither involves a message that can be intercepted, read aloud during a convincing phone call, or redirected by persuading a carrier to move your number somewhere else. The whole class of attack goes away, not because the attacker is less skilled, but because there is no longer a message in transit to take. Here is the practical sequence. List the accounts that can move money or unlock others: your primary email first, because it is the reset path for everything else and is usually the most under-protected, then banks, brokerages, and payment apps. For each, open security settings and look for an authenticator option. Set it up, and critically, save the recovery codes it gives you somewhere offline and durable. Losing your phone without those codes is the real risk of this upgrade, and it is entirely preventable by spending one extra minute at setup. Two notes. Some institutions still offer only text codes, in which case you have learned something useful about them and can at least add a PIN or port-out protection with your carrier, which is a separate and quick call. And while you are in those settings, turn on alerts for logins, contact changes, and new linked destinations, because those notifications are what turn a slow takeover into something you can interrupt. The whole exercise is perhaps half an hour and it retires the single most common failure path in account compromise.