Cloud Under Siege: Why Legacy Cyber Defenses Are Failing in the Face of Modern Attacks

The world’s most secure cloud environments aren’t as impenetrable as you think. In the ever-shifting landscape of cybercrime, attackers are no longer banging at the gates - they’re already inside, lurking in the shadows of sprawling cloud and SaaS ecosystems. At the 2026 RSA Conference, Cybercrime Magazine sat down with Charlie Thomas, CEO of Mitiga, to uncover why traditional cybersecurity mindsets are dangerously outdated - and what must change before the next headline-grabbing breach.

The New Reality: Attackers Will Get In

“If I could leave security leaders with one takeaway about the future of cybersecurity, it’s to accept and recognize that yesterday’s cybersecurity program won’t work for today’s modern attacks,” warns Thomas. It’s a chilling admission: no matter how many firewalls or preventive tools are in place, the complexity of cloud environments and the proliferation of digital identities mean that breaches are inevitable.

The old playbook - focused on building higher walls and tighter locks - has become obsolete. Instead, the focus must shift to what happens after attackers breach the perimeter. Can organizations detect their presence quickly? Can they investigate the scope and neutralize the threat before damage escalates? These are the new metrics of cyber resilience.

Inside the Cloud Forensics Revolution

Mitiga, headquartered in New York with offices in London and Tel Aviv, is on the front lines of this paradigm shift. Born from the experience of cloud incident responders, Mitiga’s solution is built for the messy, sprawling reality of the modern cloud. Their approach: automate detection, leverage AI, and maintain a forensic data lake capturing more than 1,000 days of activity - giving defenders a powerful lens to hunt for threats in real time.

The company’s creation of a 25-member CISO advisory board in 2025 signals a collaborative, global response to these new threats. Security leaders are waking up to the fact that the question isn’t if attackers get in, but how quickly you can spot and stop them.

Conclusion: Adapt or Be Breached

As cloud adoption accelerates and digital complexity multiplies, the era of “prevention only” is over. The future belongs to those who can investigate, respond, and minimize impact - because in this game, the attackers are already inside. The question is: are you ready to catch them before it’s too late?

WIKICROOK

• Cloud Incident Response: Cloud incident response is the process of detecting, investigating, and resolving security incidents in cloud environments to minimize damage and protect sensitive data.
• SaaS (Software as a Service): SaaS (Software as a Service) delivers cloud-based software online, letting users access and manage apps without local installation or maintenance.
• Forensic Data Lake: A forensic data lake is a centralized storage for security data, enabling efficient investigation, analysis, and response to cybersecurity incidents.
• Identity Sprawl: Identity sprawl is the unchecked increase of digital accounts and credentials, making it hard to control and monitor access to sensitive information.
• AI: AI, or Artificial Intelligence, is technology that enables machines to mimic human intelligence, learning from data and improving over time.