This weekly roundup covers a customer data breach at Spain’s national rail operator, an Australian government warning about attackers hijacking corporate AI services, a patient data theft from a Polish medical software platform, phishing campaigns that turn legitimate remote management tools against their victims, and a gathering of Europe’s police leaders focused on how AI is reshaping crime. 

Two threads run through this week’s stories. Artificial intelligence is now both a target and a tool for attackers: stolen API keys are draining company budgets, and AI is reportedly being used in intrusions. Meanwhile, attackers keep exploiting trusted software, from a medical records platform to legitimate IT administration tools, to stay hidden for days or weeks. 

The Cyber Express Weekly Roundup 

Renfe Confirms Data Breach Through Compromised Adif Servers 

Spanish rail operator Renfe confirmed on September 25 that hackers had accessed customer names and email addresses. The intrusion came through compromised servers belonging to Adif, the state-owned manager of Spain’s rail infrastructure. Renfe said no financial data was exposed and train services were not disrupted. Read more… 

Australia Warns of Stolen AI Keys as Hijacked Access Costs Firms Up to $600,000 

The Australian Signals Directorate (ASD) has warned that attackers are taking over organizations’ AI services. They get in through exposed API keys, stolen sessions, and compromised suppliers. Once inside, they burn through paid credits and generate harmful content. Where AI agents are deployed, they also use that access to reach connected systems and data. Read more… 

Polish Patient Data Stolen in Cyberattack on Medyc Medical Software 

Attackers exploited an SQL injection vulnerability in Medyc, a medical records platform developed by Polish vendor Qbusoft, on August 22–23. They stole patient names, PESEL national identification numbers, addresses, phone numbers, and email addresses going back to July 2024. The breach went unnoticed until September 8–9, more than two weeks later. Read more… 

Phishing Campaigns Abuse MSP360 Remote Management Tool to Install ScreenConnect 

Microsoft has tracked phishing campaigns that tricked victims across several industries into installing MSP360, a legitimate remote management tool. The installers were disguised as Zoom downloads, Adobe updates, invitations, and delivery notices. After gaining a foothold, the attackers installed ConnectWise ScreenConnect as a backup access channel. Read more… 

Europe’s Police Chiefs Warn AI Is Making Crime Faster and Larger in Scale 

More than 500 police leaders from 59 countries gathered at Europol’s headquarters from September 28 to 30 to discuss how AI is changing crime. Europol warned that criminals are using generative AI, deepfakes, and autonomous agents to expand fraud, cybercrime, migrant smuggling, and child exploitation. It also pointed to AI’s potential to speed up police investigations. Read more… 

Weekly Cybersecurity Takeaway 

Artificial intelligence features in several of this week’s stories, in different roles. In Australia, AI services are the target: attackers hijack them to steal paid credits and to reach connected systems through AI agents. At Europol’s gathering, police leaders described AI as a force multiplier that lets criminal groups run fraud and exploitation at greater speed and scale. In the Renfe case, AI was reportedly used in the attack, though that remains unconfirmed. 

The other common thread is how attackers abuse what organizations already trust. In Poland, an injection flaw in widely used medical software exposed sensitive patient identifiers and went undetected for more than two weeks. Microsoft’s findings show attackers installing two legitimate remote management tools so their activity looks like ordinary IT work.  

The Renfe breach, which reached customers through a partner organization’s servers, is a reminder that an organization’s exposure extends to its suppliers and infrastructure partners. 

Together, these developments call for practical steps. Organizations should treat AI credentials as carefully as any other privileged secret. They should watch for unexpected remote access software even when it is legitimate, and they should hold the vendors who handle their data to the same security standards they apply internally.