How to Safeguard Your Phone Number From SIM Swap Attacks in 2025

In 2025, phone numbers have become woven into nearly every part of our digital lives. Whether you’re creating accounts on e-commerce sites, managing online banking, accessing health services, or logging in to social networks, your phone number is the gateway. It helps reset forgotten passwords and powers two-factor authentication codes that keep your accounts secure.

But if a hacker gets hold of your phone number, they can essentially impersonate you.

With control over your number, attackers can infiltrate your online accounts or manipulate automated phone systems to convince customer service representatives they’re speaking to you. In some cases, a stolen phone number can even be used to breach a company’s internal network and retrieve confidential information.

That’s why it’s more important than ever to protect your number against SIM swapping — a cyberattack where someone fraudulently transfers your number to a new SIM card. The good news? Locking down your number has never been simpler.

SIM swap attacks typically begin when a criminal contacts your mobile carrier, pretending to be you. By using publicly available personal details — like your name and birth date — the attacker convinces support staff to port your number to a SIM card t

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