Ransomware and IA change the rules of cybersecurity and demand immediate action

I have not received a specific text as a starting point, but given the frequency and gravity of news about cyber attacks, I think it is useful to provide an updated journalistic analysis of the most relevant digital threats, their implications for companies and individuals, and concrete actions that can be taken today to reduce risks.

In recent years the picture has shown a clear change: Ransomware remains one of the most lucrative threats for organized criminals, while the use of artificial intelligence accelerates both the automation of attacks and defensive capabilities. The attackers have professionalized their operations, moving to models of "ransomware-as-a-service" and exploiting vulnerabilities in the supply chain to maximize impact. Reports from agencies such as CISA and analysis of European entities such as ENISA confirm that the attack surface is enlarged by the proliferation of IoT devices and the dependence of external suppliers.

The involvement for organizations is clear: a single failure in a third party manager or a non-patch team can become a corporate gap with lasting reputational and legal effects. For citizens and SMEs, the risk results in loss of personal data, financial fraud and inactivity times that can be destructive. It is not overstated that cybersecurity is now a strategic, not just a technical factor; it moves investment decisions, mergers and customer confidence.

From the operational point of view, the traditional defences - antivirus and firewalls - are still necessary but not sufficient. It is essential to adopt approaches that mitigate the current sophistication of attacks: systematically apply patches, segment networks to limit side movements, and deploy multifactor authentication for privileged accounts. In addition, the implementation of robust and verifiable support policies greatly reduces the extortion power of the ransomware, while well-tested incident response procedures accelerate recovery and minimize damage.

The human factor remains the weakest link in many organizations. Continuing training in phishing detection and simulation of real attacks are high-return practices. But it is not enough to have specific courses: the safety culture must be integrated into daily processes and review of responsibilities, so that security is no longer seen as a barrier and becomes a business enhancer.

Regulations and the legal environment also evolve. Companies in regulated sectors face increasing reporting and data protection obligations, which increases the cost of non-compliance. At the same time, some Governments are investing in defensive capacities and international cooperation against cybercrime; however, the public response does not replace the need for proactive private measures. Consulting guides and requirements of government agencies can help prioritize investments and avoid sanctions.

In this context, I would recommend that technology and general management leaders prioritize three interconnected lines of action: first, to conduct a risk assessment that identifies critical assets and providers with sensitive access; second, to invest in basic but effective controls - patches, MFA, segmentation, proven backups - and early detection capacity; and third, to prepare and implement a response plan that includes communication with customers and authorities. These measures, combined with the recruitment of appropriate cyber insurance, increase organizational resilience.

For individuals, the practical recommendation is equally direct: keep up-to-date systems, activate authentication in two steps in important services, mistrust unexpected emails and links, and keep encrypted backups off-line if possible. Small investments in good practice can avoid significant personal losses.

Finally, public-private cooperation will be crucial: sharing indicators of commitment, participating in joint exercises and supporting public awareness initiatives reduce the opportunity window for attackers. Keep informed through reliable sources such as CISA, ENISA or specialized publications makes it possible to adapt the strategy to new threats and emerging technologies. Cybersecurity is no longer just a technical problem; it is a strategic priority that requires leadership, resources and a proactive stance.