Securing an Unbeatable Tesla: Debunking the Security Myth

Have you heard the rumors about Tesla having a security flaw that could leave your car vulnerable to theft and hacking? Let's delve into the truth behind these claims and examine the security measures Tesla has in place.

Common Misconceptions and Media Hype

The truth is, any car can be stolen if the thief has the right tools. While the media often likes to highlight Tesla's security issues, it's important to understand that the reality is more nuanced. As a Google SEO expert, I can break down the actual security measures and debunk the myth once and for all.

The Media's Role: Clickbait Headlines

Headlines like "Thieves Steal Tesla Model X without key" can make for sensational clickbait. However, it's crucial to look at the full context. These headline-grabbing statements often ignore the broader picture. For example, stolen vehicles like a Honda Fit can be taken even without a key, yet this doesn't make headlines because it's not as exciting.

Understanding Tesla's Security Measures

Tesla began with a recognizable security flaw shared by many cars with fobs. However, once they became aware of it, they took proactive steps to improve. According to reliable sources, the initial security flaw wasn't specific to Tesla but was common in cars with fobs. Once Tesla realized this issue, they redesigned their fobs to enhance security.

In addition to redesigning the fobs, Tesla added extra security measures to older models. This means that while older Teslas may have had a security flaw, it was no worse than the security flaws found in most other cars on the road today. It's also worth noting that Tesla provided easy tracking for stolen vehicles, making it much more difficult for thieves to make off with the car undetected.

Specific Security Flaw and Tesla's Response

One particular flaw in Tesla's key fobs is the encryption key used. Initially, Tesla opted for a 40-bit encryption key, which is considered insufficiently secure given the advancements in computing power. In early 2004, the average home computer could crack a 40-bit encryption key in about 2 weeks. Last year, a team from a Belgian university demonstrated that with about 600 pieces of equipment, they could open and drive away a Model S in less than 2 minutes.

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Encryption experts have long known that 40-bit keys are weak. When Tesla designed the Model S, they could have used a more secure 80-bit encryption key. Despite this, Tesla continued to deliver cars with 40-bit keys until June 2018 when they finally started issuing 80-bit keys. However, Tesla has continued to use the weaker 40-bit keys in replacement key fobs, as they still have inventory of these defective keys.

Precomputed Attacks and Limitations

The Belgian team's method involves precomputing all possible 40-bit keys and storing them in a mobile device. When they intercept the initial communication between the car and the fob, they can search their database to identify the correct key. This approach doesn't work with 80-bit keys due to the enormous number of possible keys. For a 40-bit key, however, a Raspberry Pi could perform the attack.

Actions and Recommendations

While Tesla acknowledges the flaw, their response has been disappointing. They have shown no inclination to recall or replace the 40-bit key fobs, even under warranty. Instead, they are requiring customers to purchase a new key fob at a cost of $150 or more, which includes taxes, to upgrade to the more secure 80-bit key.

Given the severity of this security flaw, it would be in Tesla's best interest to recall and replace the 40-bit key fobs. Doing so would not only reinforce the company's commitment to customer safety but also maintain the trust of its customers. Tesla’s proactive customer support is a hallmark of their brand, and now is the time for them to live up to those same standards regarding security.

Conclusion: Tesla has made significant strides in improving the security of its vehicles, but the lingering 40-bit key fob issue remains a failing. It's time for Tesla to take action and do the right thing by its customers.