2026 in IoT Attacks: The Biggest Threats so Far and What Businesses Can Do

Why It Matters

The wave of IoT‑focused attacks threatens critical infrastructure and amplifies DDoS risk, forcing businesses to rethink perimeter security. Effective IoT hardening can prevent botnet recruitment and protect operational continuity.

Key Takeaways

• RondoDox botnet exploited HPE OneView RCE, 40k attacks in Jan 2026
• Kimwolf Android botnet surpassed two million infected devices, targeting ADB‑enabled TVs
• KadNap compromised 14k Asus routers, feeding Doppelgänger proxy for DDoS
• Coordinated law‑enforcement takedown disrupted four IoT botnets infecting 3 M devices
• Device authentication, firmware patches, and unique passwords are essential IoT safeguards

Pulse Analysis

The proliferation of connected sensors, cameras, and industrial controllers has turned IoT into a double‑edged sword for enterprises. While these devices enable real‑time analytics and automation, they also extend the network perimeter far beyond traditional firewalls. Each unsecured endpoint becomes a foothold for threat actors, allowing lateral movement and the creation of massive botnets that can launch high‑volume DDoS attacks against cloud services or critical infrastructure.

2026 has underscored how quickly botnet operators can weaponize everyday hardware. The RondoDox campaign leveraged a remote‑code‑execution flaw in HPE OneView, generating tens of thousands of automated assaults on government and financial targets. Simultaneously, the Kimwolf Android variant exploded to over two million compromised devices, exploiting exposed ADB services on smart TVs and streaming boxes. KadNap’s focus on Asus routers illustrates a shift toward proxy‑based DDoS services, where infected edge devices mask the true source of attacks. Geopolitical tensions further complicate the landscape, as Iran‑linked groups intensify targeting of surveillance cameras across the Middle East, using commercial VPNs to obscure their infrastructure.

Mitigating these risks requires a layered approach that treats every IoT node as a potential entry point. Strong device authentication, end‑to‑end encryption, and DNS filtering can block unauthorized traffic before it reaches vulnerable firmware. Regular patch cycles and disabling unnecessary services—such as remote debugging ports—reduce the attack surface dramatically. Finally, enforcing unique, complex passwords across all devices prevents credential‑stuffing attacks that often serve as the first step in botnet recruitment. Organizations that embed these practices into their security policies will be better positioned to protect both their data and the broader internet ecosystem from the next wave of IoT‑driven threats.