AN1278: Analytic 1278
Multiple failed authentications in unified logs (e.g., loginwindow or sshd)
Analyst context for executives and security teams
This analytic is about spotting repeated failed authentications on macOS through unified logs, such as events associated with loginwindow or sshd. For leaders, the value is not that every failed login is malicious, but that repeated failures can be an early warning of account misuse, weak access controls, remote access exposure, or gaps in identity monitoring for Apple endpoints.
Executive priority
Prioritize this as a coverage-validation item for macOS identity and endpoint monitoring. Security leaders should ask whether macOS authentication failures are centrally collected, retained, and reviewed with enough context to support incident response, access governance, and audit evidence. Because ATT&CK provides no tactic mapping, relationship context, or detection logic for this object, it should be treated as a focused monitoring requirement rather than a complete detection strategy.
Technical view
SOC and detection teams should validate that macOS unified log data containing authentication failures from sources such as loginwindow and sshd is collected and normalized. The core analytic concept is multiple failed authentications, so teams need to define local thresholds, time windows, account and host grouping, and exclusions for expected administrative or user-error patterns. IR teams should ensure alerts can be tied back to the user, host, authentication source, timestamp, and whether the activity involved local console login or SSH-related authentication.
Likely telemetry
- macOS unified logs
- Authentication failure events from loginwindow
- Authentication failure events from sshd
- Host identifiers for affected macOS systems
- User/account identifiers associated with failed authentications
Detection direction
- Confirm macOS unified logs are actually collected from in-scope endpoints and retained long enough for investigation.
- Build or validate logic for multiple failed authentications grouped by account, host, and time window.
- Separate local loginwindow failures from sshd-related failures where the logs allow, because the investigation paths and risk context may differ.
- Tune thresholds to reduce false positives from mistyped passwords, password changes, shared devices, or expected administrative activity.
- Check for blind spots on unmanaged macOS systems, endpoints not forwarding unified logs, and environments where SSH is enabled but not monitored.
Mitigation priorities
- Ensure macOS endpoints that matter to business operations are enrolled in centralized logging or managed detection workflows.
- Review authentication policy and access management controls for macOS accounts, including remote access exposure where SSH is enabled.
- Use repeated failed-authentication findings to drive account review, endpoint investigation, and identity-control validation rather than relying on the alert alone.
- Document logging, retention, and response procedures so the control can support compliance and incident-readiness evidence.
Analyst notes and limits
The supplied ATT&CK object is a detection analytic for macOS with a short description: multiple failed authentications in unified logs, for example loginwindow or sshd. No tactics, detection logic, mitigations, relationships, or related techniques were supplied, so this take focuses on practical validation of telemetry and alert design rather than threat attribution or impact assumptions.
This assessment is limited to the supplied official STIX fields and external reference for AN1278. ATT&CK did not provide official detection content, tactic mapping, or relationship context in the supplied object. Local environment details are required to define thresholds, expected behavior, logging completeness, and response priority.
Analytic 1278
Multiple failed authentications in unified logs (e.g., loginwindow or sshd)
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.0 | Current bundle | 33f27aca9d94… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
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[1]
mitre-attack AN1278Open source URL
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