Three active cybercriminal campaigns are exploiting trust in routine business systems. GrelosGTM injects payment skimmers into Google Tag Manager containers on compromised e-commerce sites, bypassing traditional file integrity checks and PCI compliance tools. Two IoT malware families, KATARU and Evooo1Bot, are scanning for unpatched edge devices using vulnerabilities dating back to 2007, turning compromised routers and network appliances into proxy infrastructure. Meanwhile, criminals are creating convincing fake versions of legitimate financial portals that surface in organic search results through typosquatting and Punycode manipulation. Each campaign targets a different attack surface, but all exploit the same underlying assumption: that familiar tools, devices, and search results are inherently trustworthy. Mauven MacLeod examines the behavioural incentives that make these attacks effective and outlines practical steps UK businesses can take today to audit their Google Tag Manager containers, verify firmware on internet-facing devices, and reduce social engineering risks through simple URL management practices.