Beyond Passwords: How Two-Factor Authentication Is Securing Cars and Medical Devices

Picture this: It’s midnight in a quiet suburb. A thief stands outside a driveway, armed not with lockpicks, but with high-tech electronics. In less than a minute, your car is gone - stolen not by force, but by hacking your key fob. Meanwhile, across town, a hospital’s life-saving device faces a silent threat: hackers seeking to compromise patient data or even disrupt treatment. Welcome to the new frontier of cybercrime, where the battle for security moves beyond computers, and two-factor authentication (2FA) becomes a vital shield for our physical world.

The Digital Double Lock for Cars

For years, two-factor authentication was the realm of IT professionals and cautious online shoppers. But as organized crime syndicates learn to clone car keys and launch “relay attacks” that trick vehicles into opening, automakers are racing to outsmart them. David Berg, VP at Keyfree Technologies, describes how modern thieves exploit electronic systems to steal cars without ever touching a window. “They’re bypassing built-in security systems by doing relay attacks and key cloning,” he warns.

To counter this, companies are developing 2FA solutions that require drivers to verify their identity through both a physical device (like a key fob) and a digital factor - such as a one-time password on a mobile app - before the engine will start. Electric vehicles, which are constantly connected and tracked, are less attractive targets, but the threat remains real for millions of older, keyless models.

Yet, progress is slow. “For interactions that happen frequently, like unlocking or starting the vehicle, mandatory 2FA is not convenient for users,” notes Dr. Bastian Holderbaum of FEV.io GmbH. Automakers are experimenting with biometric authentication (face or fingerprint), secure digital keys, and proximity-based systems, but balancing security with user convenience is an ongoing struggle. Trade groups are pushing for broad cybersecurity standards, but direct regulations on vehicle authentication are still rare.

Life and Death: 2FA in Healthcare

In hospitals, the stakes are even higher. Internet-connected devices like infusion pumps and diagnostic machines are prime targets for cybercriminals seeking to steal patient data or disrupt care. “When unauthorized access to medical infrastructure carries real-life safety consequences, the bar for identity assurance must be higher than a single factor,” says Shane Barney, CISO at Keeper Security.

Healthcare providers are implementing 2FA and multi-factor authentication (MFA) for both staff and equipment, requiring physical credentials plus PINs to access sensitive systems. But not all 2FA is created equal: SMS codes, still common, are vulnerable to interception and SIM-swapping. Experts advise that more robust, independent authentication channels are needed to truly safeguard critical environments.

The Road Ahead

As 2FA becomes a baseline expectation - not just for computers, but for cars, supply chains, and medical devices - the challenge is to keep security strong without making life harder for users. Regulations may be slow to catch up, but the message is clear: in a world where digital threats now have physical consequences, proving your identity twice may be the new price of safety.

WIKICROOK

• Two: Two-factor authentication (2FA) is a security method requiring two different types of identification to access an account, making it harder to hack.
• Relay Attack: A relay attack is when criminals intercept and forward data between two parties, tricking systems into accepting unauthorized access or transactions.
• Man: A Man-in-the-Middle attack occurs when a hacker secretly intercepts and possibly alters communication between two parties, posing as each to the other.
• SIM: SIM swapping is a cyber scam where criminals hijack your phone number by transferring it to a new SIM card, gaining access to calls and texts.
• Multi: Multi refers to using a combination of different technologies or systems - like LEO and GEO satellites - to improve reliability, coverage, and security.