Connectivity is an issue for logistics and transport fleets more than any other industry, new research suggests. Some 165 ‘Internet of Things’ (IoT) decision-makers in major logistics and transport firms across the world were questioned for The Connected Fleet 2026, produced by Pelion in partnership with ABI Research. In total, 675 business leaders throughout a variety of industries took part in the survey. Among the logistics and transport professionals surveyed, more than two-thirds (68%) revealed that unstable cellular connectivity or network capacity is a major obstacle to scaling their IoT deployments – the highest proportion of any sector included in the research. Ensure you always get Fleet News insight. Make us your preferred source on Google For businesses that rely on real-time fleet tracking, cold-chain monitoring and parcel visibility, even brief periods of connectivity loss can disrupt operations, reduce customer visibility and impact service-level agreements. The findings reflect an industry under growing pressure to deliver uninterrupted, data-driven logistics across increasingly complex supply chains. The findings also reveal security is emerging as an equally significant challenge. More than a quarter (27%) of logistics respondents reported experiencing a cellular IoT security incident during the past 12 months – the highest rate across all industries surveyed, ahead of manufacturing (26%), smart buildings (25%), healthcare (24%) and energy (19%). As transport operators connect more vehicles, trailers, warehouses and cargo assets, the industry’s attack surface continues to expand. This mirrors wider market trends, with analysts forecasting that the number of connected IoT devices worldwide will exceed 40 billion by the end of the decade, making robust device management and network security increasingly critical for supply chain resilience. The research also reveals that logistics leaders are particularly concerned about their ability to detect threats before they disrupt operations. Almost two-thirds (62%) identified insufficient threat detection as