As software gains ground and controls additional features in vehicles, such as self-driving capabilities or integrating with services like Spotify, cars will require regular updates, just like Apple pushed modifications to its iPhone software about 10 times last year.
Many updates will be aimed at fixing software bugs -- there are typically 200 million lines of code in a car, which means it's unlikely to be bug-proof from day one, Ericsson's Olsson said.
The car is being converted into a self-driving robot.
The learning curve has proved messy for some carmakers so far, spurring demand for expert suppliers. Toyota Motor Corporation, the world's largest automaker, in 2014 had to recall more than half of the Prius vehicles ever sold to fix a software bug that could slow down or bring the car to a halt.
"The car is being converted into a self-driving robot," said Lars Reger, chief technology officer of chipmaker NXP's automotive division. "Because of that, software is becoming far more important than it was 10 years ago." NXP's chips can be found in cars from manufacturers including Tesla, Audi, BMW and Mercedes.
The practice of updating a car's software is due to grow at least tenfold in the coming six years as vehicles become increasingly connected, researcher IHS Automotive forecast in a report. About 4.6 million cars got over-the-air updates for telematics applications last year, compared to 43 million units expected worldwide by 2022, it said. Maps, infotainment and core auto functions will also spur updates, IHS said.
Security is as good as it gets in recent all-electric models, but in older cars, the ones with electronics here and there, it's not great.
It's inevitable that carmakers will go through the same motions as banks or retailers did in the past years, bulking up their security spending to avoid breaches that would hurt consumer confidence, said Olivier Piou, CEO of cybersecurity company Gemalto, which has Audi among its customers. "Companies who have a reputation to protect can't afford not to think about security," Piou said.
There will be 150 million connected cars circulating globally in 2016 and more than 800 million by 2023, according to predictions by Analysis Mason.
As software innovation continues to evolve quickly around a network of connected objects, from refrigerators to drones, how long carmakers can upkeep older vehicles will be key in avoiding future threats from hackers and cybercriminals. Lessons from the computer software world show Microsoft Corp. had to extend support for its Windows XP operating system, including security patches, beyond the initially projected 10-year mark because too many people were still using the old software.
"Some carmakers are ahead of others" already, said Jerome Robert, chief marketing officer at Lexsi, a security company that banks to governments hire to attack their systems in order to help identify vulnerabilities. "Security is as good as it gets in recent all-electric models, but in older cars, the ones with electronics here and there, it's not great."
For suppliers, competition is tough. Software for cars is attracting resources from companies as varied as Google and Jerusalem-based Mobileye. Ericsson says it can transpose decades of developing network-security technology for mobile carriers. Meanwhile, NXP and Gemalto have built a reputation by helping secure banking transactions, mobile phones and electronic passports.