Should organisations use eSignature migration to modernise workflows or copy old ones?

Why This Matters for Security Teams

Copying an old eSignature workflow into a new platform often preserves the exact weaknesses migration was supposed to remove. The better approach is to separate true business requirements from legacy habits: approval steps, identity checks, signer authentication, audit evidence, retention, and exception handling. That distinction matters because an eSignature process is also an identity workflow, and identity shortcuts tend to become security debt.

This is especially important when the workflow touches non-human identities, such as API-driven document generation, service accounts, or approval bots. The same governance logic that applies to other NHIs applies here too: reduce standing access, validate who or what is acting, and remove unnecessary secret exposure. NHI Management Group guidance in the Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, which is a strong reminder that inherited access patterns are often wider than they need to be. That risk becomes more visible when teams redesign rather than rehost a workflow. NIST also frames identity and access as a core part of resilience in the NIST Cybersecurity Framework 2.0, where asset visibility, access control, and continuous improvement all support safer operations.

In practice, many security teams encounter avoidable approval bypasses and overbroad signer access only after a migrated workflow has already gone live.

How It Works in Practice

A modern migration starts by mapping the current process end to end, then classifying each step as essential, compensating, or purely historical. Essential steps stay, but they may change form. For example, a paper-era wet signature control may become strong identity verification, policy-based approval, or multi-party signing with JIT access. Historical baggage, such as duplicate manual checkpoints or permanent shared credentials for document routing, should be removed.

For NHI-driven steps, the goal is to make the workflow more explicit and less durable. Instead of keeping long-lived secrets embedded in code or admin consoles, issue short-lived credentials only when the workflow needs them. Instead of granting a service account broad document repository access, scope it to one template library or one signing queue. Instead of letting a bot impersonate a human approver, separate machine actions from human approvals so audit logs remain trustworthy. The Ultimate Guide to NHIs is useful here because it ties lifecycle control to visibility, rotation, and offboarding, which are all relevant when a migration introduces new automation paths.

Current guidance suggests pairing that design with policy and governance controls from the NIST Cybersecurity Framework 2.0: define access, monitor it, and review it continuously rather than treating the new workflow as a one-time deployment. A practical migration checklist often looks like this:

• Identify which approvals are legal, regulatory, or fraud-related requirements.
• Remove duplicate signoff steps that exist only because the old system was limited.
• Replace shared accounts with named users or scoped non-human identities.
• Use short-lived secrets and rotate anything that must persist.
• Log who approved, what was approved, and which system action actually executed.

These controls tend to break down in highly integrated legacy environments because multiple downstream systems still depend on the old, overprivileged workflow account.

Common Variations and Edge Cases

Tighter workflow control often increases change-management effort, requiring organisations to balance speed against assurance. That tradeoff is real in regulated signing flows, high-volume procurement, and cross-border approval chains where legal evidence, segregation of duties, and user experience all matter at once.

There is no universal standard for how much of an old eSignature process should be preserved, but current guidance suggests preserving only controls that defend a clear requirement. If a step exists only because the legacy system could not validate identity cleanly, automate it. If a step exists to create an audit trail, keep the evidence but not necessarily the manual action. If a step exists because teams fear change, test whether the new platform can record stronger proof with less friction. The practical test is simple: does the control reduce risk, or does it merely reproduce friction?

One common edge case is mixed human and machine signing. A document may be initiated by software, reviewed by a manager, and routed by a bot. In that environment, good governance separates the machine’s workload identity from the person’s authorisation. That avoids mixing signing authority with system automation, which is where many audit and fraud problems start. Another edge case is when integrations require temporary access to repositories or CRM systems. In those cases, JIT access and ephemeral secrets are preferable to standing credentials, even if implementation takes more planning. The broader pattern is the same as other NHI controls: reduce permanent privilege, constrain scope, and make every identity event visible.

In practice, teams usually discover the hardest exceptions only when a workflow fails under audit, legal review, or a production outage, not when the migration plan is first drafted.

Related resources from NHI Mgmt Group

• When should organisations prioritise Zero Standing Privilege for non-human identities?
• How can organisations reduce secret leakage in ServiceNow at scale?
• How do organisations reduce false positives in secret detection pipelines?
• When does regex-based secret detection become too unreliable for production use?