Why does it matter? If your phone number ends up outside of your control, this means that 2FA codes can be stolen and any online account linked to this number is at risk of being hijacked. They do this in order to transfer a number away from a handset - even if only for a short period of time - and then 'own' the number for the time it takes to grab two-factor authentication (2FA) sent to the phone number and to access a target account, whether this is banking, email, or a cryptocurrency wallet. In targeted attacks, fraudsters are using social engineering techniques to impersonate their victims in calls to telephone service providers. Why does it matter? If an email account acts as a singular hub for other services, a single compromise can snowball into the hijack of many accounts and services. As central hubs to other online services, hackers may try to obtain our passwords through credential stuffing, social engineering, or phishing scams in order to jump to other services. Our email accounts are often the pathway that can provide a link to all our other valuable accounts, as well as a record of our communication with friends, families, and colleagues.
There can now be millions - or even billions - of dollars at risk when information security isn't handled properly. Today's security threats have expanded in scope and seriousness.
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