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Zero-Day Exploits 2025: Companies must act now

Zero-Day Exploits 2025: Companies must act now


The digital threat landscape continues to escalate: In the first half of 2025, more zero-day exploits were discovered and weaponized than ever before.
Especially concerning: the increasing focus on the healthcare sector, where millions of patient records fell into the wrong hands.
For companies across all industries this means: Cybersecurity is a leadership priority – it can no longer be postponed.

Threat Landscape 2025: The Silent Escalation

Between January and June 2025, more than 3,600 ransomware attacks were recorded worldwide – an average of 20 per day.
At the same time, the number of published vulnerabilities keeps rising: nearly half of them are classified as critical.
Even more severe: many of these security flaws have been known for years, yet remain unpatched in active systems.

Healthcare Under Attack

A particularly hard-hit sector is healthcare. According to current analysis, around 30 million people were affected by data breaches and targeted cyberattacks on medical facilities in the first half of the year.
In over 75% of cases, hacking or an IT-related vulnerability was the root cause.

Zero-Day Exploits: The Invisible Danger

Zero-day exploits target vulnerabilities before vendors can discover or patch them. The latest report shows that this type of attack has increased by 46%.
Most worrying is the growing shift of attacks towards non-traditional devices such as:

  • Edge devices and network peripherals
  • IP cameras and BSD-based servers
  • Industrial protocols like Modbus (OT networks)

State-Sponsored Threat Actors on the Rise

More frequently, hacktivists and state-sponsored groups are among the main actors.
According to analysis, around 40% of observed attacks in the first half of 2025 were attributed to such groups.
Targets increasingly include critical infrastructures, media organizations, water utilities – and also mid-sized businesses are coming under fire.

Cybersecurity 2025: Time for a New Security Mindset

Given these developments, outdated security concepts are no longer sufficient.
Modern protection requires:

  • Zero-trust architectures
  • Complete visibility across IT, OT, IoT & IoMT
  • Automated patch and vulnerability management processes
  • Integration of smart tools like Microsoft Defender and Azure Sentinel


Selected insights are based on a publicly available report by
Forescout Technologies,
a global leader in cybersecurity solutions.

zubIT – Your Microsoft Solutions Partner for Holistic Cybersecurity

At zubIT, we combine deep expertise with proven Microsoft technologies to make your company resilient against modern threats. Our solutions include:

✅ Zero-trust strategies
✅ Microsoft-based security platforms
✅ Vulnerability & threat management
✅ Tailored consulting

 

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Let’s secure your IT – before attackers do.