Leaving recently created accounts and data shares active gives attackers a path to maintain access and move data out of the environment. The article emphasizes suspending accounts and shares created in the last 30 days because they are common persistence and exfiltration mechanisms. Without that containment step, compromise can continue even after the original access point is identified.
What “discovered” actually changes operationally
Once unauthorized Snowflake access is confirmed, the question is no longer just how entry happened, it is how to stop the actor from continuing to operate. In practice, that means treating recent accounts and data shares as active exposure paths, not administrative leftovers. A newly created object can preserve access even after the original foothold is closed, especially if it still carries permissions, trusted relationships, or data movement capability.
The relevant issue is persistence through legitimate platform features. In cloud data environments, attackers often prefer paths that look routine from the platform’s point of view, because those paths are harder to distinguish from normal administration. That is why the Snowflake breach matters here, it shows how cloud credential abuse can turn ordinary access paths into a continuing data exposure problem. The same logic is reflected in NHI lifecycle controls, where access that is still valid must be assumed dangerous until proven otherwise.
When recent accounts and data shares remain active, the attacker does not need to reinfect the environment. They can continue using the already-approved path to query, export, or relay data, which makes response slower and containment less reliable. This is why containment decisions should focus on what remains usable, not only on what was originally compromised.
Why active accounts and shares are the real containment problem
Recent accounts are high-risk because they are often created for short-lived access, testing, integration, or onboarding, and they may not yet have been fully reviewed. Data shares are equally sensitive because they extend trust outward and can persist beyond the incident that created them. If either remains active after unauthorized access is discovered, the environment may still be granting access through a channel the attacker can use immediately.
That is also why recent object age is a useful triage filter. The article’s emphasis on suspending accounts and shares created in the last 30 days is a pragmatic containment shortcut, not a blanket rule that every old object is safe. Recent objects are more likely to be tied to the attacker’s path, less likely to have mature ownership controls, and more likely to be missed during a hurried review. NHIMG’s Ultimate Guide to NHIs, Key Challenges and Risks is a useful companion for understanding why overprivilege, visibility gaps, and unmanaged credentials make these situations harder to contain.
Data shares create an additional problem: they can move data out of the source environment without looking like a classic exfiltration tool. That means the compromise can remain operational even if direct access to a primary account is revoked. In a response, the key judgment is whether the share still allows the attacker to keep pulling data, not whether the original login has already been blocked.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 and MITRE ATT&CK address the attack and risk surface, while CIS Controls v8, NIST CSF 2.0 and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 — Secrets and Credential Management | Recent active access paths can persist through compromised secrets and shares. |
| NHI-02 — Lifecycle and Offboarding | Active recent accounts and shares are a lifecycle containment issue after compromise. | |
| NHI-03 — Overprivilege and Excessive Access | Unauthorized Snowflake access is amplified when active objects retain more access than needed. | |
| Recommendation — Revoke and rotate any secret or share that can still authenticate access. Suspend and decommission recently created identities and shares during incident containment. Reduce surviving access paths to the minimum needed for recovery and validation. | ||
| CIS Controls v8 | 5.3 — Account Management | Compromised recent accounts should be disabled to stop continued unauthorized access. |
| 6.3 — Access Rights Management | Active data shares represent surviving access rights that can sustain exfiltration. | |
| Recommendation — Disable suspicious accounts and confirm they are no longer active. Review and revoke unnecessary access rights tied to the incident. | ||
| MITRE ATT&CK | T1078 — Valid Accounts | Attackers often maintain access by using still-valid accounts or shared access paths. |
| T1530 — Data from Cloud Storage | Active shares can support ongoing cloud data theft after initial discovery. | |
| Recommendation — Hunt for continued use of valid accounts and remove surviving access immediately. Investigate whether cloud-native sharing paths are still enabling exfiltration. | ||
| NIST CSF 2.0 | PR.AC-1 — Identities and Credentials Managed | Incident containment depends on managing active identities and access paths. |
| RS.MI-1 — Incidents Contained | Suspending recent accounts and shares is part of containing active compromise. | |
| Recommendation — Invalidate exposed identities and credentials that can still be used for access. Contain the incident by removing surviving access and monitoring for reuse. | ||
| NIST Zero Trust (SP 800-207) | 3.1 — Policy Enforcement Point | Surviving accounts and shares bypass effective policy enforcement if left active. |
| Recommendation — Enforce policy at the access point and block still-authorized compromise paths. | ||
Practitioner Guidance
What to prioritise: Suspend recently created accounts and data shares first, then review whether any other objects created in the same window have comparable access. If the access path can still reach production data, treat it as active compromise until the trust link is removed.
What to verify: Confirm who owns each account or share, what data it can reach, whether it has been used recently, and whether it was created for a temporary purpose that is now obsolete. If ownership or business justification cannot be proven quickly, containment should win over convenience.
Common mistake: Teams often revoke the obvious login and stop there, while leaving the more durable sharing or delegation path untouched. That leaves the attacker with a low-friction route to continue access or re-establish it without needing a new intrusion.
Practitioner takeaway: In Snowflake incidents, containment is measured by whether the attacker still has a usable path, not by whether the first compromised account has been identified.
Related resources from NHI Mgmt Group
- What happens when service accounts are left without ownership or access reviews?
- What happens when service accounts are left outside privileged access management?
- What happens when leaked credentials are left active after being discovered in Jenkins logs?
- What happens when applications depend on long-lived credentials instead of temporary access in cloud infrastructure?
