Weekly Cybersecurity Digest [October, Week 4]

Posted on October 27, 2026

Dear Valued Clients,

Welcome to this week’s cybersecurity digest from Make Sense. Across Europe, recent developments have exposed vulnerabilities in the digital infrastructure organisations depend on every day. Critical software flaws prompted government websites to go offline, a cloud outage disrupted banking services, and a university data breach revealed the risks of sensitive information held in test environments.

Meanwhile, attacks involving trusted software distribution channels and AI-assisted techniques are raising new concerns about supply-chain security and privileged access. European regulatory developments also reinforce the importance of effective incident reporting, basic security controls and clear accountability.

✅ Top Stories of the Week

i. Critical PHP Vulnerabilities Force Precautionary Website Shutdowns Across Europe

Two critical PHP vulnerabilities prompted government bodies across Europe to temporarily take websites offline on October 21. The flaws could allow unauthenticated remote code execution on affected systems. Security updates are now available, while Dutch authorities said successful exploitation remained unconfirmed in their October 23 assessment. The incident highlights the importance of identifying software dependencies and applying security patches quickly. [Read more via Netherlands’ National Cyber Security Centre]

ii. University of Copenhagen Cyberattack Exposes Data of 525,000 Individuals

The University of Copenhagen confirmed that hackers accessed a test environment containing personal data relating to approximately 525,000 people. The university subsequently disclosed compromised access-card PINs affecting around 20,000 individuals. On October 26, it reported a separate cyberattack and precautionarily shut down several administrative systems. The incidents highlight the importance of protecting non-production environments, sensitive data and physical-access credentials. [Read more via BleepingComputer]

iii. Google Cloud Outage Disrupts Banking Services Across the UK

A power-related failure in Google Cloud’s London region disrupted online banking services on October 20, affecting Revolut, Lloyds and HSBC. Google subsequently reported that services had been restored for most customers, while Revolut confirmed customer money and data remained safe. Although not a cyberattack, the outage highlights the operational risks associated with cloud dependencies and the importance of tested recovery arrangements. [Read more via Euronews]

✅ Industry Trends & Insights

French Cloud Provider OVHcloud Discloses Software Supply Chain Compromise

French cloud provider OVHcloud disclosed on October 20 that attackers had used a compromised developer GitHub account to replace downloadable CLI binaries with credential-stealing malware. The malicious files were available for approximately 93 minutes on October 19. OVHcloud confirmed that its source code and build infrastructure were unaffected. The incident highlights the importance of software release integrity, artifact verification and securing developer credentials. [Read more via OVHcloud’s Security Advisory]

AI Supply Chain Attack Compromises LiteLLM and Exposes Cloud Credentials

LiteLLM confirmed that attackers compromised its release pipeline on October 21, distributing malicious version 1.107.0 through PyPI and container registries. The package contained malware designed to steal cloud and AI-related credentials. Affected releases were withdrawn, but users who executed them may need to rebuild environments and rotate exposed secrets. The incident highlights growing supply-chain risks within AI infrastructure. [Read more via LiteLLM’s Official Security Report]

Microsoft Reveals AI-Accelerated Attacks Exploiting Trusted Cloud Applications

Microsoft reported that the China-aligned Storm-0940 group used the ARTEX agentic AI framework to accelerate cyberattacks against organisations globally, including the abuse of compromised ConnectWise application identities. In some cases, privileged cloud access was obtained in under three hours. The findings highlight growing risks from AI-assisted attack techniques and the need to monitor third-party applications and non-human identities with privileged access. [Read more via Microsoft Threat Intelligence]

✅ Regulatory & Policy Updates

EU Council Agrees Position on Simplifying Cybersecurity and Data Incident Reporting

On October 21, the Council of the EU adopted its negotiating position on proposals to simplify GDPR, privacy and cybersecurity reporting requirements. The mandate includes a mechanism for a single reporting point for cyber and data incidents, alongside proposed adjustments to data protection rules. The changes remain subject to legislative negotiations and do not alter current reporting obligations. [Read more via the Council of the EU]

UK Privacy Regulator Reprimands Organisations Over Weak Password That Exposed Children’s Data

The UK’s Information Commissioner’s Office reprimanded Ogi Networks and Data Cymru following a ransomware attack that exposed personal information belonging to approximately 3,300 people, mostly children. Investigators found that an obsolete test account protected by the password “Password1” had remained in place for more than 12 years. The enforcement action highlights failures in account lifecycle management, authentication security and oversight of outsourced services. [Read more via the ICO]

✅ Cyber IQ Challenge + Proactive Security Hacks

Quick Quiz: Your organisation has established the following business continuity requirements for a critical application:

  • The application must be restored within four hours of a disruption.
  • No more than 15 minutes of transaction data can be lost.

Which recovery objectives correctly reflect these requirements?

A) Recovery Time Objective (RTO): 15 minutes; Recovery Point Objective (RPO): 4 hours.

B) Recovery Time Objective (RTO): 4 hours; Recovery Point Objective (RPO): 15 minutes.

C) Recovery Time Objective (RTO): 4 hours; Recovery Point Objective (RPO): 4 hours.

D) Recovery Time Objective (RTO): 15 minutes; Recovery Point Objective (RPO): 15 minutes.

(Answer below)

Smart Security Moves of the Week:

  • Assess critical software dependencies: Maintain visibility over programming languages, libraries and externally maintained components. Identify vulnerable applications quickly and establish emergency patching or isolation procedures.
  • Secure non-production environments: Apply appropriate access controls, monitoring and data minimisation to test and development systems. Avoid using identifiable production data unless necessary and adequately protected.
  • Test cloud service disruption scenarios: Identify business processes that depend on external cloud infrastructure and validate alternative operating arrangements, recovery procedures and communication plans.
  • Verify software release integrity: Protect developer accounts, restrict publishing privileges and validate downloaded binaries. If a release has been compromised, investigate potential credential exposure, rebuild affected environments where necessary and rotate exposed secrets.
  • Check for stolen sessions and unauthorised MFA methods: Review unfamiliar sign-ins, newly registered devices, authentication methods and suspicious mailbox rules. If an account is compromised, revoke active sessions, remove unauthorised access methods and reset credentials. For Microsoft Entra environments, strengthen Conditional Access and investigate unusual token and device-registration activity.

Answer: B) Recovery Time Objective (RTO): 4 hours; Recovery Point Objective (RPO): 15 minutes.

RTO defines how quickly a service must be restored, while RPO defines the maximum acceptable data loss.

Both should reflect business needs and be validated through recovery testing.

✅ Conclusion

This week’s developments highlight how vulnerabilities in software, cloud services and trusted third-party systems can quickly affect entire organisations.

For European businesses, the lesson goes beyond preventing attacks. Understanding technology dependencies, securing access, managing suppliers and testing recovery capabilities are equally important to maintaining operational resilience.

Final reflection: If a critical technology provider were compromised tomorrow, would your organisation be prepared to contain the impact and restore essential services?

At Make Sense, we help organisations turn cybersecurity and regulatory requirements into practical measures that strengthen security and resilience.

Stay secure,

The Make Sense SRL Team & CyberTania