Robert Hannigan, Chairman of International Business at BlueVoyant and former Director of GCHQ, has published a frank assessment of the growing threat posed by Iranian-aligned cyber actors — and what organisations should be doing about it. Writing in UK Tech News, Hannigan draws on warnings from CISA, NSA, and the UK’s own NCSC to argue that the threat has moved beyond targeted espionage into a new phase of broader, more disruptive operations.
Iran’s Expanding Cyber Capabilities
Activity linked to Iranian-aligned actors has intensified since early February 2026, with campaigns observed across banking, aviation, aerospace, and defence sectors. The tactics have evolved significantly: where earlier Iranian operations often relied on relatively unsophisticated approaches, current campaigns demonstrate:
- Credential-based intrusions and brute-force authentication attacks
- Ransomware deployment and destructive wiper malware
- Exploitation of unpatched CVEs in internet-facing systems
- Abuse of legitimate remote monitoring and management (RMM) tools to blend into normal IT traffic
- Multi-stage social engineering campaigns
- Targeting of industrial control systems (ICS) and SCADA infrastructure
Proxies, Criminal Groups, and Blurred Lines
One of the more concerning aspects of the current threat landscape is the blurring of state and criminal activity. Iranian state-sponsored groups increasingly use proxy actors — criminal hacking groups with overlapping financial and political motivations — to conduct operations with plausible deniability. In some cases, possible links to Russian support have also been observed.
This means that an organisation targeted by what appears to be a financially motivated ransomware group may in fact be the subject of a state-directed operation, with implications for how the incident should be managed, reported, and attributed.
As Hannigan puts it: “In an era where nation states and criminal groups operate in the same shadows, resilience is the most powerful defence.”
Who Is in Scope?
The geopolitical context matters here. Iranian cyber operations have historically followed geopolitical flashpoints — retaliatory actions following sanctions, regional conflicts, or diplomatic incidents. Hannigan warns directly: “The geopolitical situation is volatile, and organisations should assume they may be in scope for retaliation.”
While critical national infrastructure and large financial institutions are the most prominent targets, supply chain attacks mean that smaller businesses — particularly those providing services to larger organisations in sensitive sectors — can become entry points. No business should assume it is too small to be relevant.
Priority Defensive Actions
Hannigan’s recommended defensive priorities align closely with the NCSC’s Cyber Essentials framework and broader good practice:
- Patch promptly. Unpatched systems are the most common entry point. Prioritise internet-facing systems and known exploited vulnerabilities.
- Strengthen identity controls. Enforce MFA on all remote access, email, and administrative accounts. Audit privileged accounts and remove unnecessary access.
- Secure remote access services. VPNs, RDP, and other exposed services are consistently targeted. Restrict access, require MFA, and monitor for anomalous authentication.
- Monitor for RMM abuse. Legitimate IT management tools used by attackers generate legitimate-looking traffic. Baseline normal usage so anomalies can be detected.
- Plan for resilience, not just prevention. Assume some attacks will succeed. Invest in detection, response planning, and recovery capabilities alongside preventive controls.
Resilience as the Core Strategy
The article’s underlying message is one that appears consistently in current NCSC guidance: basic cyber hygiene — patching, MFA, access control, monitoring — prevents the overwhelming majority of attacks. And for the sophisticated attacks that do get through, organisations that have invested in detection and recovery capabilities will suffer far less disruption than those that focused purely on perimeter defence.
“Vigilance and basic cyber hygiene remain the most effective defences against Iranian-linked operations,” Hannigan concludes.
If you want to review your organisation’s resilience against the current threat landscape, explore our cybersecurity services or contact the BIT Tech team for a conversation.
