Why Lift and Shift Cloud Migrations Keep Failing Security Reviews

Lift and shift, moving on-premise servers into cloud VMs with minimal changes, is often sold as the fast path to the cloud. It is fast, but it usually fails security review for the same handful of reasons.

Flat networks become flat cloud networks

If your on-premise environment had no network segmentation, copying that architecture into a VPC just moves the same weakness into the cloud, at scale.

Static credentials replace short-lived ones

Cloud providers offer identity-based, short-lived access by default. Lift-and-shift migrations frequently ignore this and keep long-lived static keys instead, which is exactly what attackers look for.

Storage defaults get missed

Cloud storage buckets and databases have very different default exposure settings than on-premise file shares. Without a deliberate review, private-by-default assumptions from on-premise do not carry over.

The fix is not slower migration, it is smarter migration

A security-reviewed migration does not have to take longer. It just needs the network, identity, and storage design to be planned before the move, not patched after.