The cybersecurity threats facing businesses in 2026 are not merely an evolution of what came before. According to Arryaan Bhandari, Co-Founder and Chief Operating Officer of Singapore-based PQStation, they represent a structural shift. One driven by AI, accelerating attack cycles, and the looming spectre of quantum computing.

For security leaders across the Asia Pacific, the message is clear: preparation cannot wait for a crisis, a mandate, or a competitor’s breach.

In an email interview with e27, Bhandari describes 2026 as the beginning of an era in which AI compresses the timeline between a threat actor’s reconnaissance and their strike. AI-powered phishing, deepfake-enabled identity fraud, automated vulnerability discovery, and autonomous attack infrastructure are all converging to lower the barrier for launching sophisticated attacks.

“The organisations that combine AI-enabled defence with long-term cryptographic agility will be the ones that build durable digital trust,” Bhandari says.

That convergence is reshaping what cybersecurity fundamentally demands of business leaders. Detection, which is defined as catching threats as they arrive, is no longer sufficient on its own. The more urgent imperative, Bhandari argues, is architecture: how an organisation’s systems are built and whether they are designed to adapt as threats evolve. As generative AI lowers the cost and complexity of attacks, PQStation’s position is that cybersecurity must be treated not just as a detection problem, but as an architecture problem.

Also Read: Plug-and-play cooling: Carnotfleet’s bid to democratise the cold chain

Bhandari points to iterative validation as a practical starting point. Frequent proof-of-concept testing across security mechanisms — from endpoint defences to the cryptographic layer — helps enterprises identify what actually holds up under real-world pressure, rather than generating a false sense of compliance.

Critically, he cautions against waiting for regulatory mandates before acting. Organisations that move only when required will find themselves perpetually catching up. “The smarter approach is to build modularity and agility into security architecture now … so that as threats evolve — whether AI-driven or quantum-enabled — the underlying infrastructure can adapt without wholesale replacement.”

The quantum threat is not theoretical

Beyond the immediate cybersecurity threats of 2026, Bhandari identifies post-quantum cryptography as the defining long-term challenge for enterprise security. Much of today’s digital security — online banking, government communications, critical infrastructure — relies on cryptographic algorithms that a sufficiently powerful quantum computer could break.

“Quantum migration is no longer science fiction,” he says. “It is a structural inevitability.”

The challenge for enterprises, Bhandari explains, is not simply adopting new post-quantum standards. It is doing so across complex, deeply embedded systems without disrupting operations. That requires what PQStation terms “crypto-agility”, the ability to transition between cryptographic standards without mission-critical systems going dark in the process.

He recommends that organisations begin by building a clear inventory of their cryptographic assets, dependencies, and long-lived data exposure. Without that baseline, any transition will be fragmented and reactive. From there, a phased migration framework aligned with business-criticality gives security teams a structured, measurable path forward.

Also Read: Horizon Quantum’s SPAC listing signals selective return of deeptech deals

In the Asia Pacific region, Bhandari expects 2026 to function as an inflexion year. Most regulators have not yet mandated immediate post-quantum migration, but clear signals around quantum-readiness planning and cryptographic visibility are already shaping enterprise investment well before formal requirements arrive.

Financial services, government agencies, critical infrastructure operators, and healthcare organisations are the sectors most likely to face concrete guidance, and potentially structured mandates, during the year ahead.

His advice to security leaders is to move beyond minimum compliance. Documented migration roadmaps, measurable cryptographic risk assessments, and demonstrable resilience planning will increasingly become baseline expectations, not differentiators.

Ultimately, Bhandari frames the challenge for security leaders in 2026 not as one of reaction, but of readiness. Embedding security into architecture and procurement decisions, investing in internal capability, and aligning security strategy with long-term business continuity are the pillars he returns to consistently.

“In 2026,” he says, “leadership will be defined not by speed of response, but by depth of preparation.”

For businesses still treating cybersecurity threats as a compliance checkbox rather than a strategic priority, that distinction may prove to be a costly one.

—

Image Credit: GuerrillaBuzz on Unsplash

The post ‘Detection is no longer enough’: PQStation on the cybersecurity threats reshaping business in 2026 appeared first on e27.