Solar Power’s Secret Downside: Cybersecurity Nightmares Unplugged
A solar ecosystem of problems is shining light on cybersecurity vulnerabilities, with 46 flaws affecting major solar vendors. From hijacking inverters to cloud-based takeovers, these bugs could lead to blackouts and chaos. As vendors scramble to patch, users must also brace themselves for securing this sun-kissed energy solution.

Hot Take:
As if the sun’s job of burning us to a crisp in the summer wasn’t enough, now it seems it’s also moonlighting as a cybercriminal. Solar power systems, the eco-friendly poster child of renewable energy, apparently have the security of a sieve. With vulnerabilities as wide as the chasm between your intentions to get fit and actually going to the gym, these solar systems are basically inviting hackers over for tea. Time to put some SPF (Secure Power Foundation) on those solar panels!
Key Points:
– Researchers found 46 vulnerabilities in solar power systems from top vendors, threatening grid stability and user privacy.
– Exploits could lead to coordinated attacks, potentially causing blackouts and emergency power measures.
– 80% of vulnerabilities have high or critical severity, with 32% scoring a CVSS of 9.8 or 10.
– Vendors have patched the issues, but basic security measures were surprisingly lacking.
– Recommendations include treating inverters as critical infrastructure and following cybersecurity guidelines.
The Sunny Side of Insecurity
Move over, coal and oil; the sun has a new gig, and it’s not just shining light on your solar panels. Researchers at Forescout uncovered a treasure trove of vulnerabilities in solar power systems from leading vendors. Sungrow, Growatt, and SMA—sounds like the headliners for a music festival, but instead of headbanging, we’re dealing with head-scratching security flaws. These vulnerabilities affect everything from power inverters to mobile apps and cloud backends, creating an ecosystem of problems ripe for exploitation.
The Not-So-Bright Future
In a twist more unexpected than a plot from a daytime soap opera, these vulnerabilities could let cybercriminals cause grid instability or even hijack your smart home devices. With Growatt inverters as easy to commandeer as a free cab during rush hour, attackers can control your solar plants and devices. Meanwhile, Sungrow inverters are just begging to be hijacked by anyone with a knack for finding insecure direct object references (IDORs). The effect? Think of it as a botnet rave at your local power grid, complete with flashing blackout lights.
Security Bugs: The Gift That Keeps on Giving
It’s not just this year’s crop of vulnerabilities that’s concerning. The researchers found a trend: more than 10 new vulnerabilities disclosed per year in solar power systems over the past three years. The majority are high or critical in severity, with 32% scoring a CVSS of 9.8 or 10. Apparently, securing solar panels is about as popular as washing your hair on a Friday night, with security by design being more of a wish than a reality. As solar installations grow in commercial settings, the stakes are higher. We’re talking hospitals, government facilities, and manufacturing plants—places where a blackout is not just an inconvenience but a potential catastrophe.
Turning Up the Heat on Security
The researchers at Black Hat Asia didn’t just point out the problems, they also shone some light on potential solutions. Treat those inverters as if they’re the crown jewels of your energy setup. Follow guidelines from NIST and the Department of Energy, and make sure your security practices are tighter than a pair of skinny jeans. It’s time for businesses to step up and ensure their solar systems are as isolated as a hipster at a country music festival, while also keeping them updated and monitored.
Recommendations for Solar Security
During their talk, the researchers rolled out a list of recommendations that are more comprehensive than your average New Year’s resolutions. These include treating inverters as critical infrastructure, conducting risk assessments, ensuring network visibility, segmenting devices into their own subnetworks, and following secure software life-cycle practices. Regular penetration testing and adoption of security-in-depth strategies are just the start. It’s time to bring out the big guns and arm your solar systems against potential attackers.
Conclusion: A Ray of Hope?
So, while the sun is busy making your garden grow and your electricity bill shrink, don’t forget that it’s also a beacon for cybercriminals. With these vulnerabilities patched, there’s hope for a brighter, more secure solar future. But until then, keep your eyes on the sky and your firewalls up. After all, in the battle against cyber threats, a little paranoia is as essential as sunscreen at the beach.
