---
title: "OTA car updates pose cyber risks for Aussie drivers"
author: "Tom Walsh"
datePublished: 2026-07-18T23:46:00.000Z
canonical: "https://dudeworld.com.au/post/00ticg0000lp6/ota-car-updates-cyber-risk-australia-2026"
---

A car update that saves a dealer run is handy. Less handy is the bit nobody thinks about while the ute is parked in the driveway: the same connection can become another way into the vehicle. Analysts and Australian cyber experts say over-the-air, or OTA, updates are now baked into modern utes, EVs and family tow rigs. The convenience is real. So is the owner risk.

OTA has moved well beyond the old Tesla novelty. [Tesla started deploying over-the-air updates to Model S vehicles in 2012](https://www.cnbc.com/2026/07/18/over-the-air-tech-in-vehicles-poses-cybersecurity-risks.html), and carmakers now use similar systems for bug fixes, battery-management tweaks, navigation changes and infotainment patches without dragging the car into a workshop. Drivers get fewer recall visits and quicker fixes. Manufacturers get a vehicle that keeps checking in with the factory after delivery. The practical question for Aussie owners is blunt: how much access does the carmaker keep, and how well is that pipe protected?

[Siraj Ahmed Shaikh](https://www.cnbc.com/2026/07/18/over-the-air-tech-in-vehicles-poses-cybersecurity-risks.html), a systems security professor at Swansea University cited in the main report, said manufacturers have a clear reason to like the setup.

> “The technology is increasingly welcomed as it is a quick and cost-effective way to manage systems on vehicles.”  
> Siraj Ahmed Shaikh, CNBC

There is a proper upside here. [Consumer Reports](https://www.consumerreports.org/cars/car-maintenance/ota-car-software-updates-are-they-safe-how-they-work-a4081157745/) has noted OTA software can fix smaller faults and feature bugs without the usual workshop shuffle, which helps if one car has to handle school runs during the week and a campsite on Saturday. The rub is the live pathway. A vehicle that keeps talking back to the manufacturer exposes a route for telemetry, diagnostics or software delivery, and that route has to be secured properly.

Australia is already well into that shift. [SBS News reported](https://www.sbs.com.au/news/article/car-security-evs-internet-cars-tracking-australia-asio/etdtxll9e) that as many as 95% of vehicles here could be internet-linked by 2035, with sensors across a car generating as much as 1 to 2 terabytes of raw data a day. That is more than maps and stereo presets. It can include location data, driving behaviour, system status and a running record of what the vehicle is doing. If we are hauling the family to the coast or dragging a camper into patchy reception country, the connected car becomes another device that can fail, leak data or be poked remotely.

[Alastair McGibbons](https://www.news.com.au/technology/motoring/motoring-news/top-cyber-expert-warns-popular-chinese-cars-could-be-spying-on-owners/news-story/a561a3a5de55c754c9cd2d0dda564b9c), the former head of the Australian Cyber Security Centre, put the live-link issue plainly in [news.com.au’s reporting](https://www.news.com.au/technology/motoring/motoring-news/top-cyber-expert-warns-popular-chinese-cars-could-be-spying-on-owners/news-story/a561a3a5de55c754c9cd2d0dda564b9c): manufacturers need connectivity to keep modern vehicles talking.

> “They have to have an over-the-air connectivity to the manufacturer for telemetry.”  
> Alastair McGibbons, [news.com.au](http://news.com.au)

The attack surface is already growing. [Heavy Vehicle Industry Australia](https://hvia.asn.au/cyber-security-adr-consultation-begins/) says automotive hacks rose 225% between 2018 and 2021, citing Upstream data, and 85% of those intrusions were remote. Those figures cover more than private cars. Still, the lesson carries across to the modern ute, SUV and EV: once important systems can be reached through mobile or internet links, cybersecurity becomes part of ownership, alongside recovery points, spare-wheel access and whether the fridge slide rattles itself loose on corrugations.

One useful warning sign came from [Ruter](https://ruter.no/en/ruter-with-extensive-security-testing-of-electric-buses), the Norwegian public transport operator, after security testing on electric buses. In that test, Ruter said a bus had mobile-network access to battery and power-supply control systems and could, in theory, be stopped or rendered inoperable through that channel. A bus fleet is not a Hilux or an EV wagon. Fair enough. But it shows how far remote access can reach once software, connectivity and vehicle controls sit in the same stack.

Most dash prompts to install an update will be routine. Plenty of OTA fixes are useful, and some will patch safety or software faults faster than a dealer network can. Buyers still have a few boring questions worth asking before signing: what systems can be updated remotely, whether updates can be delayed, what data leaves the vehicle, and what happens if an update fails when the car is hours from a metro service centre. In 2026, a connected car is convenient gear. It is also gear we should understand before trusting it a long way from home.