Weekly Cybersecurity Newsletter: Top Threats and News, June 27

Highly relevant cyberattacks: leaks, rescues and blackouts

In just a few days, we have witnessed events that demonstrate that digital security is no longer an option: it's an urgent need. Join us on this tour of the most important news in the world of cyber defense:

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1. Unprecedented leak: 16 billion passwords exposed

Cybernews researchers they detected a monumental breach: 16 billion credentials (passwords, tokens, session cookies) are freely circulating on the network, distributed in more than 30 unencrypted databases (Times of India, 2025).

Affected services include: Google, Apple, Facebook, Telegram, GitHub and government platforms.

Immediate risks:

• Hyper-personalized phishing
• Account hijackings
• Unauthorized access to corporate environments

Recommended actions:

• Change critical passwords and activate MFA
• Adoption of passkeys on compatible platforms
• Proactive credential exfiltration monitoring

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2. Melilla suffers a massive cyberattack: 90 out of 100 servers are left out of service

The Autonomous City has been the victim of a targeted cyberattack, which affected 90 of your 100 critical servers, paralyzing much of the local public administration.

Incident details:

• It occurred after remote access by an employee, compromising systems
• It included destruction of the contingency plan and data encryption.
• It is estimated that the recovery could begin next week
  

This attack confirms the vulnerability of local critical infrastructures against highly specialized cybercriminals.

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3. Ransomware alters cattle auction in Silleda

La Central Agropecuaria de Galicia ABANCA had to suspend its cattle auction due to a ransomware attack that eliminated backup copies for almost three weeks. The attackers demanded a ransom, but the Green Week Foundation didn't even respond.

Economic impact:

• Nearly 1,500 animals affected
• Weekly trade volume: 1.9 M €‍

This case leaves a clear lesson about the need for offline backups and agile response strategies.

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4. Educacyl confirms cyberattack on its portal

The Ministry of Education of Castilla y León has confirmed an attack on its main portal (Educacyl), which manages requests for scholarships and grants, exposing personal and banking data.

Key Lessons:

• Platforms with sensitive data require constant monitoring
• Importance of regular security audits in critical services

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5. Continuous increase in ransomware in Spain

According to CronUp, in the last 48 hours they have been published 24 new victims of ransomware, and only last week they were counted 30 new affected entities on data filtration portals.

This increase evidences the persistence of attacks and the high activity of ransomware in Europe and Spain.

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Conclusion: urgency and immediate action

A week that reveals a clear pattern: threats evolve rapidly and strike without warning. La Prevention is essential to minimize losses, rescues and reputational damage.

Recommendations for organizations

• Regular system and protocol audits
• Establishing offsite and contingency backups
• Continuous training in cyber hygiene for employees
• Procurement of SOC solutions and proactive intelligence

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Act now with Apollo Cybersecurity!

At Apolo Cybersecurity, we offer specialized services to protect your organization against these threats:

• Technical audits and vulnerability analysis
• Services SOC 24/7, incident response and crisis recovery
• Training for managers and IT teams
• Digital security and culturization simulations

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🔐 Request your free audit today