06/10/2026
Always fun to have a peek behind the curtain...
Banks spend millions on cybersecurity. Turns out the most secure-looking machine on the street is just a Windows PC having a bad day in public.
This is a real ATM. The cash software gave up and dropped straight to the Windows lockscreen underneath, telling anyone walking past exactly what sits behind your money. And what surprises most people is that this is completely normal. An ATM is a Windows machine with a cash drawer bolted on.
→ Around 2014, when Microsoft ended support for Windows XP, roughly 95% of US ATMs were still running it. Many kept running XP for years after that deadline on paid extended-support deals.
→ Plenty of smaller community banks still run Windows 7 today, sometimes fully air-gapped, because replacing a single ATM can cost between $40,000 and $60,000.
→ The ATM industry leaned heavily on Windows 10 IoT Enterprise 2016 LTSB. Microsoft ends support for it on October 13, 2026, which is exactly why the rush to Windows 11 is happening right now.
A few more facts:
→ Roughly half of the smaller retail ATMs, the ones in shops and bars, run Windows CE instead of desktop Windows.
→ Running an unsupported OS can push a bank out of PCI DSS compliance, with fines that hit small institutions hard.
→ When the app dies and the OS is exposed like this, you are looking at the exact layer attackers go after with jackpotting malware that forces the machine to dump its cash.
In my Ethical Hacking Complete Course Zero to Expert I take you from reconnaissance and scanning all the way through real exploitation, including Windows privilege escalation from a normal user up to full SYSTEM control.
→ https://www.udemy.com/course/ethical-hacking-complete-course-zero-to-expert/?couponCode=JUNE2026
Hacking is not a hobby but a way of life. 🎯
Research & writing: Jolanda de Koff | HackingPassion.com
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