Barracuda’s security team has reviewed how cyberthreats evolved over the past year and identified four trends expected to shape cybersecurity in 2025. One of these threat types stands out as particularly difficult to manage.
“For Swedish companies, the unknown threat will be especially challenging next year. These threats are hard to predict and demand proactivity, flexibility and AI-based solutions to detect and respond,” says Peter Graymon, Nordics Director for Barracuda Networks.
Four threat categories likely to dominate in 2025:
- AI-driven attacks that become faster and more personalized
AI tools continue to accelerate and refine cyberattacks, making them harder to detect and increasingly targeted. Automation enables attackers to run large-scale campaigns that systematically exploit vulnerabilities in software and systems, often tailoring lures and payloads to specific individuals or roles. - Greater sophistication to evade security systems
Cybercriminals are investing more effort into avoiding and sabotaging defenses. Advanced techniques—such as tools designed to disable endpoint detection and response (EDR) systems—and more refined phishing methods are expected to grow more common as attackers seek to slip past traditional protections. - Escalation of multi-channel and multi-stage attacks
Attackers are increasingly combining multiple vectors in a single campaign. An intrusion might begin with an email or a collaboration tool compromise and then spread across platforms and services. Vulnerabilities in connected devices and identity gaps are especially vulnerable when attackers move laterally through networks and cloud resources. - The unknown threat — growing uncertainty from hidden vulnerabilities
Hidden security gaps, novel attack techniques and unintentional risks in the supply chain create significant concern. Adversaries are getting better at using innovative tools to infiltrate systems, exfiltrate data and disrupt infrastructure—often without triggering obvious alerts—leaving organizations unaware of risks until it’s too late.
“The unknown threat means you may not know where your weaknesses are until after an incident. Organizations should invest in comprehensive cybersecurity platforms. The key challenge is understanding what assets you actually have that need protecting. A complete and continuously updated asset inventory is essential to ensure security controls are deployed across every device,” says Eric Russo, Head of SOC Defensive Security at Barracuda Networks.
“Unprotected devices connected to the network are primary targets for attackers. Ensuring full coverage of security controls across all endpoints and environments is therefore critical to an effective cybersecurity program,” Eric Russo adds.
For more detailed insights, see Barracuda’s full predictions on cyberthreats for 2025.