Current wave of ransomware: What we can learn from it

IT security
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Ransomware is back – and more aggressive than ever. The latest wave of attacks shows how vulnerable even well-positioned companies can be. But it also provides valuable insights into the attackers’ methods, typical vulnerabilities – and how to protect yourself better.

Specific cases and their consequences

  1. Hospital network in France

A ransomware attack paralyzed several clinics. Patient files were no longer accessible and operations had to be postponed. The damage: over€3 million, plus loss of reputation(source).

  1. Logistics companies in Germany

A medium-sized freight forwarder was incapacitated by an encrypted ERP database. The recovery took 12 days and the damage amounted to over€1 .2 million(source).

  1. City administration in the USA

An attack on a municipal IT infrastructure led to the publication of sensitive citizen data. The city paidaransomof US$ 600,000, although there was no guarantee that the data would be returned(source).

What do the attackers want?

The goals are clear: money, pressure, data. But the methods are becoming more sophisticated:

  • Double blackmail: first encrypt data, then threaten to publish it.
  • Targeted attacks: Instead of mass mailings, vulnerabilities are exploited in a targeted manner.
  • Social engineering & AI: Phishing emails look increasingly credible – often AI-generated(source).

The attackers are often well organized, work in teams and use Ransomware-as-a-Service (RaaS). The barriers to entry are low – the profits are high.

Top 10 sectors – most frequently affected

According to recent studies, the following sectors are particularly at risk ( source):

  1. Healthcare
  2. Public administration
  3. Educational institutions
  4. IT service provider
  5. Energy supply
  6. Finance
  7. Retail trade
  8. Logistics & Transportation
  9. Media & Entertainment
  10. Mechanical engineering

Reasons: high data values, low security budgets, complex supply chains.

What we can learn from this

  1. Backups are not enough.

Many companies rely on backups – but attackers delete or encrypt them in a targeted manner.

  1. Prevention is better than reaction.

The average clean-up costs areUS$ 1.5 million, while preventive measures often cost only a fraction(source).

  1. Awareness is crucial.

Employees are often the weakest link – training and clear processes are essential.

  1. Incident response must be prepared.

If you don’t have an emergency plan, you lose valuable time – and money.

  1. AI can help.

Modern systems recognize suspicious patterns at an early stage – e.g. through AI-supported vulnerability analysis or phishing detection.

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