a person's finger holding up a SIM card with a phone in the background - Towfiqu Ahamed/Getty Images A SIM card is a necessity for connecting your phone to a cellular network. Unfortunately, that ... ExtremeTech: The humble SIM card has finally been hacked: Billions of phones at risk of data theft, premium rate scams It took a long time -- more than 20 years, to be exact -- but the humble SIM card that sits within your phone, and seven billion others, has finally been hacked.

Understanding the Context

Of the seven billion modern SIM cards ... The humble SIM card has finally been hacked: Billions of phones at risk of data theft, premium rate scams Physical SIM cards have long been synonymous with phone numbers. They've changed greatly from what they once used to be โ€” giant cards you'd have to put in after removing your phone's battery โ€“ but ... A SIM card is a necessity for most cell phones.

Key Insights

(Public Domain) Even though it's one of the simplest components in a cellphone, older SIM cards are still vulnerable to attack, leaving approximately ... MUO on MSN: All my phones have eSIM, but I still use physical SIM cards for these 3 reasons All my phones have eSIM, but I still use physical SIM cards for these 3 reasons SIM swap fraud, in which a cellular service provider is duped into assigning a mobile phone number to a new SIM card is real and on the increase, according to experts. What's False SIM information ... Phones that take two SIM cards were a small trend at Mobile World Congress. Here's why that's a good thing.

Final Thoughts

Kent was a senior managing editor at CNET News. A veteran of CNET since 2003, he reviewed ... This is a common problem, especially since more and more businesses are starting to issue mobile phones to their employees. Fortunately, there are a few solutions that enable you to put two SIM cards ... Forbes: SIM Cards Have Finally Been Hacked, And The Flaw Could Affect Millions Of Phones SIM Cards Have Finally Been Hacked, And The Flaw Could Affect Millions Of Phones SiliconANGLE: SIM Card Vulnerability Puts One Quarter of all Phones At Risk Digital Trends: What is an eSIM, is it better than a physical SIM, and which phones are eSIM only? What is an eSIM, is it better than a physical SIM, and which phones are eSIM only?

I'm not buying the eSIM hype โ€” physical SIM cards are more reliable and make you less dependent on your cellular carrier. Snopes.com: Are Mobile Phone Users Vulnerable to 'SIM Swap' Fraud Through Phone Calls? Are Mobile Phone Users Vulnerable to 'SIM Swap' Fraud Through Phone Calls? Smartphones are susceptible to malware and carriers have enabled NSA snooping, but the prevailing wisdom has it there's still one part of your mobile phone that remains safe and un-hackable: your SIM ...