A business moves its infrastructure from an ageing server room into AWS or Azure, expecting the change itself to solve a long list of nagging security concerns. The project finishes on time, the old server room is cleared out, and everyone breathes a sigh of relief. Six months later, a routine test reveals that the same weak admin password policy, the same overly broad access permissions, and the same lack of monitoring that existed before the migration are all sitting there in the new cloud environment too, simply wearing a different logo.
The lift and shift that shifts your problems too
Cloud migration genuinely does remove certain categories of risk, ageing hardware, unpatched physical servers, and single points of failure tied to one building. What it does not automatically fix is how a business actually manages access, permissions, and configuration, because those habits belong to the people running the systems, not to the infrastructure itself. A team that granted excessive admin rights on premises will very often grant the same excessive rights in the cloud, because the underlying decision-making process never actually changed during the move.
Testing a freshly migrated environment properly means checking it as a new system in its own right, not simply assuming the migration project’s own checklist covered security adequately. Dedicated AWS pen testing examines the actual configuration of your new environment against what a determined attacker would look for, rather than trusting that the migration vendor’s default assumptions matched your specific security needs.
Old habits do not disappear just because the servers did
Misconfiguration is where most of this risk actually concentrates. Storage permissions set too broadly during testing and never tightened afterwards, identity systems inheriting old role structures that made sense on a smaller on-premises network but grant far too much access at cloud scale, and monitoring tools that were never actually switched on because nobody assigned that task to anyone specific during the busy migration period itself. None of these gaps are exotic. They are simply habits, carried across unchanged, into an environment that behaves differently under the surface.
William Fieldhouse has tested plenty of freshly migrated cloud environments that still carried their old weaknesses intact.
“We tested a business two months after their move to Azure and found the exact same shared administrator password they had used on their old physical server, now controlling considerably more valuable cloud resources than it ever had before.”
— William Fieldhouse, Director of Aardwolf Security Ltd
That single detail captures the whole problem neatly. The migration itself had been technically successful, delivered on schedule, and the new environment ran faster and more reliably than the old one ever did. Nobody, however, had treated the move as an opportunity to actually fix the underlying habits that created risk in the first place, so the business had simply relocated its weakest point to a more powerful, more valuable piece of infrastructure than before.
Testing the new environment, not just admiring it
Moving to the cloud is a genuine opportunity to leave old weaknesses behind, but only if someone deliberately checks whether that actually happened rather than assuming a successful migration equals a secure one. A proper review of your Azure pen testing configuration, alongside the habits and permissions carried over from your old setup, shows you exactly what made the journey with you. That check is worth doing shortly after any migration, while the old habits are still fresh enough to fix properly.
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