Official Denials vs. Technical Reality: The Growing Credibility Gap in Cyber Incident Reporting

In the immediate aftermath of a major service disruption, a new script is being followed with alarming frequency: within hours, a senior official or regulatory body steps forward to publicly rule out a cyberattack. This occurred recently when Hong Kong's Monetary Authority (HKMA) swiftly declared that a significant HSBC banking outage was not the result of a hack. A similar narrative emerged following a major power grid incident, with Ukrainian President Volodymyr Zelenskiy stating there was "no confirmation" it was a cyberattack. While intended to calm public fear and market volatility, this trend of pre-emptive denials is creating a profound crisis of credibility and poses serious risks to global cybersecurity posture.

The Technical Implausibility of Swift Attribution
From a digital forensics perspective, definitively ruling out a cyberattack within the first 24-48 hours of a complex outage is often technically implausible. Modern cyber operations, especially those conducted by state-sponsored or highly sophisticated criminal groups, are designed for stealth and plausible deniability. Attackers may use living-off-the-land techniques (LOTL), leverage legitimate administrative tools, or deploy malware with built-in self-destruct mechanisms. Determining whether a system failure is due to a misconfiguration, a hardware fault, or a deliberate, obfuscated attack requires meticulous log analysis, memory forensics, and often weeks of investigation. A declaration of "no hack" issued on the same day suggests a political or economic conclusion, not a technical one.

The Drivers Behind the Denial
The incentives for rapid denial are powerful. For financial institutions like HSBC, the immediate priority is containing reputational damage and preventing bank runs or stock sell-offs. For governments, acknowledging a cyberattack on critical infrastructure—such as a power grid—can be viewed as an admission of vulnerability, potentially escalating geopolitical tensions or public panic. Regulatory bodies may also feel pressure to project stability and control. However, this short-term crisis management directly conflicts with the principles of effective incident response, which prioritize evidence gathering, containment, and eradication over public reassurance.

Consequences for the Cybersecurity Community
This environment creates significant operational challenges for security professionals. First, it pollutes the threat intelligence landscape. If official sources are perceived as unreliable, defenders must rely on incomplete or unofficial data, making it harder to connect disparate attacks and identify broad campaigns. Second, it undermines collective defense. Sharing indicators of compromise (IOCs) and tactics, techniques, and procedures (TTPs) relies on a foundation of trust and transparency, which is eroded when incidents are officially whitewashed. Third, it complicates post-incident learning. Without an honest accounting of what occurred—whether it was a novel zero-day exploit, a supply chain compromise, or an insider threat—the entire community cannot properly adapt its defenses.

The Cover-Up Scenario and Advanced Persistent Threats (APTs)
The most concerning implication is that this pattern provides perfect cover for advanced persistent threat (APT) groups. A sophisticated attacker can engineer an outage that mimics a routine system failure. When authorities inevitably announce the incident was not a cyberattack, the attacker achieves their disruption objective without triggering the heightened defensive scrutiny that follows a publicly acknowledged breach. This allows them to maintain access, refine their tools, and potentially re-strike the same or similar targets later. The denial becomes a weapon in the attacker's arsenal.

Toward a New Standard of Communication
The cybersecurity community must advocate for a more responsible communication protocol. Initial statements should focus on facts: which services are impacted, what recovery efforts are underway, and when updates will be provided. Speculation on root cause, especially to rule out malicious intent, should be avoided until investigators have high-confidence evidence. A model could be, "We are investigating the cause of the outage, including all potential vectors. We will provide updates as our forensic investigation progresses." This preserves credibility, manages public expectation, and does not prematurely absolve or accuse any party.

The cases of HSBC and the power grid outage are not isolated. They are symptomatic of a systemic failure in how institutions and governments communicate during cyber crises. For defenders on the front lines, these official narratives are often met with skepticism. Building a more resilient digital world requires not just better technology, but a commitment to integrity in incident reporting. The first step is to stop denying the possibility of an attack before the evidence is in.