Magic links are sign-in links that let someone access an account without typing a password at that moment. They are usually sent to an email address or phone number already associated with the account, and their details vary by service. Knowing how they work makes it easier to use them safely and spot a message that does not look right.
What happens when you use one
After you enter an account identifier, such as an email address, a service may send a link that contains a temporary sign-in token. Opening it can confirm that you control the inbox or device and complete the sign-in process. Some links work only once or expire, while others may behave differently, so follow the instructions shown by the service.
The link is effectively a key for the action it authorizes. Treat it like a password: anyone who gets a usable copy may be able to access the account. Avoid posting it, forwarding it, or copying it into a chat, even if the message appears routine.
Check the message before opening
First consider whether you just requested a sign-in link. Check the sender and read the message for context, but do not rely on a familiar display name alone. If you were not expecting it, do not open the link; go to the service through an address or app you already know and check the account there.
Look at the destination shown by your browser before continuing, especially if the message urges immediate action or asks for unrelated personal details. A page requesting a password, payment information, or a verification code may not be part of the expected sign-in flow. The phrase magic links can refer to different features in different contexts, so identify what the particular link is meant to do.
Common problems and safer habits
If a link does not work, it may have expired, already been used, or opened in a browser that is not connected to the same account session. Requesting another link through the service’s normal sign-in page is generally clearer than trying an old message repeatedly. Check that you entered the correct email address or phone number, and look in filtered message folders if nothing arrives.
For added protection, secure the inbox or phone account where sign-in links are delivered, since access to it may affect other accounts. Sign out on shared devices and avoid opening account links from a device you do not trust. If you suspect someone else used a link, use the service’s account recovery or security settings and follow its current guidance.