How should security teams secure shared business accounts without slowing down marketing operations?

Security teams should centralise access, require MFA, and remove password sharing where possible. The goal is to keep business users productive while making access traceable and controllable. For shared accounts, governance should focus on who can use the account, how approval works, and how credentials are protected so a compromise does not become a brand or operational incident.

Why This Matters for Security Teams

Shared business accounts often start as a convenience for marketing, customer support, or agency collaboration, then quietly become a governance problem. The security issue is not only password sharing. It is the loss of accountability, the difficulty of revoking access cleanly, and the tendency for one account to accumulate excessive privilege across ad platforms, social tools, and automation workflows. NIST’s SP 800-53 Rev 5 Security and Privacy Controls reinforces the need for controlled access, traceability, and strong authentication even when business pressure favours speed.

NHI Management Group’s Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges and 79% of organisations have experienced secrets leaks, which is a strong reminder that convenience without control becomes a breach pathway. For shared accounts, the practical challenge is to preserve campaign agility while ensuring every action is attributable and every credential can be contained if exposed. In practice, many security teams discover shared-account misuse only after an ad platform takeover or an agency offboarding failure has already caused business disruption.

How It Works in Practice

The best operating model is to treat each shared business account as a governed access point, not as a communal password. Centralise ownership in an identity platform, wrap the account with MFA, and remove direct password circulation wherever possible. Where the application supports it, use delegated access, role assignment, or scoped tokens instead of a single shared login. When the application does not support that pattern, add compensating controls: a password vault, checkout workflow, session logging, and alerting on unusual usage.

Security teams should also separate the human user from the account itself. The people who need access should authenticate individually, be approved for a role, and receive access through a controlled workflow. That allows the business to keep one operational account while security preserves traceability. Current guidance also suggests using secrets managers and short-lived access wherever the platform supports them, because long-lived credentials are hard to govern once they spread across agencies, laptops, and browser profiles.

• Require MFA on the shared account and on every identity that can request access to it.
• Use named-user approvals and time-bound access instead of shared passwords in chat or email.
• Store credentials in a vault with checkout records, rotation, and revocation procedures.
• Log logins, session activity, and high-risk changes such as billing, audience, or admin updates.
• Review access on a campaign or vendor cycle so dormant users are removed quickly.

For platform-specific guidance, the NHI market overview is useful for understanding why shared credentials become high-value secrets, and NIST control families such as access control and audit logging help translate that into operational requirements. These controls tend to break down when marketing teams rely on ad-hoc agency access and the application offers no delegated permissions, because the organisation is left defending a shared password instead of governing identity.

Common Variations and Edge Cases

Tighter account control often increases operational overhead, requiring organisations to balance campaign speed against the friction of approvals, vault checkout, and access reviews. That tradeoff is real, especially when marketing teams work with agencies, contractors, or regional partners who need fast access during launches. The right answer is not always immediate elimination of every shared account, because some legacy platforms still force it, but the control objective should remain the same: one accountable owner, minimal privilege, and rapid revocation.

There is no universal standard for this yet, but current guidance suggests three common exceptions. First, legacy tools may require a single login, so security teams should compensate with MFA, tight vault controls, and strong monitoring. Second, if a platform supports service accounts or delegated roles, those should replace shared human credentials. Third, if an agency needs temporary access, time-bound approval and documented offboarding should be mandatory. This is especially important for marketing stacks where social publishing, analytics, and CRM tools are interconnected and a compromise in one can cascade into others.

For a broader view of how identity sprawl creates risk, the State of Non-Human Identity Security highlights the confidence gap and the role of poor credential rotation in real incidents. That matters here because shared business accounts are often managed like convenience logins, not like sensitive identities. Security teams should assume that any shared account will eventually be overused, overshared, or forgotten unless the lifecycle is intentionally enforced.

Related resources from NHI Mgmt Group

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