The number will be bracketed by a pair of identical symbols. For instance, the number may look like this: “⑆0123456789⑆”[2] X Research source
If you write the number down, be sure to store it in a safe place, like your wallet or a filing cabinet.
If none of these things are present, don’t enter your account number as your information may not be kept confidential. You should not need to provide your account number for online shopping, so be wary of sites that ask you to.
