{"id":3107,"date":"2026-10-21T08:45:56","date_gmt":"2026-10-21T03:15:56","guid":{"rendered":"https:\/\/www.smsgatewaycenter.com\/blog\/?p=3107"},"modified":"2026-10-21T08:47:56","modified_gmt":"2026-10-21T03:17:56","slug":"sms-account-security-audit-trail-activity-logs-connected-devices","status":"publish","type":"post","link":"https:\/\/www.smsgatewaycenter.com\/blog\/sms-account-security-audit-trail-activity-logs-connected-devices\/","title":{"rendered":"SMS Account Security Audit Trail: Activity Logs, Login Alerts and Connected Devices via API"},"content":{"rendered":"\n

Your messaging account already records logins, key changes, webhook edits and credit purchases, and it lists every live session. Here’s how to copy that activity log without missing or doubling rows, watch sessions for new devices, keep login alerts from being quietly switched off, and run an incident response that actually closes the door.<\/p>\n\n\n\n

\"Abstract<\/a>
An audit trail is a chain of records plus a watch on who is signed in right now.<\/figcaption><\/figure>\n\n\n\n

Table of Contents<\/h1>\n\n\n\n
    \n
  1. The Short Answer<\/a><\/li>\n\n\n\n
  2. TL;DR<\/a><\/li>\n\n\n\n
  3. Three Security Surfaces at a Glance<\/a><\/li>\n\n\n\n
  4. What the Activity Log Gives You<\/a><\/li>\n\n\n\n
  5. Why Offset Paging a Newest-First Log Drifts<\/a><\/li>\n\n\n\n
  6. An Incremental Sync That Never Misses or Doubles<\/a><\/li>\n\n\n\n
  7. Storing Activity Rows: Raw First, Hash-Chained<\/a><\/li>\n\n\n\n
  8. Classifying Free-Text Activity Without Breaking<\/a><\/li>\n\n\n\n
  9. Reading the Connected Devices List<\/a><\/li>\n\n\n\n
  10. Never Store a Session Token<\/a><\/li>\n\n\n\n
  11. Timestamps You Can and Can’t Trust<\/a><\/li>\n\n\n\n
  12. Spotting New Devices and Unexpected IPs<\/a><\/li>\n\n\n\n
  13. Logging Out One Device or All the Others<\/a><\/li>\n\n\n\n
  14. What Logging Out Doesn’t Revoke<\/a><\/li>\n\n\n\n
  15. Notification Settings as Checked Config<\/a><\/li>\n\n\n\n
  16. Read and Update Speak Different Shapes<\/a><\/li>\n\n\n\n
  17. An Incident Runbook That Uses All Three<\/a><\/li>\n\n\n\n
  18. Decision Matrix<\/a><\/li>\n\n\n\n
  19. Implementation Checklist<\/a><\/li>\n\n\n\n
  20. Unspecified Behaviour and How to Code Around It<\/a><\/li>\n\n\n\n
  21. FAQs<\/a><\/li>\n<\/ol>\n\n\n\n

    The Short Answer<\/h2>\n\n\n\n

    Your SMS account gives you three security APIs. SMSApi\/activity\/read<\/code> returns the account’s activity history, newest first, up to 200 rows a call. SMSApi\/security\/connectedDevices<\/code> lists every live session, and two POST calls log out one session or all the others. SMSApi\/notifications\/read<\/code> and \/update<\/code> control who gets emailed about logins, low balance and usage.<\/p>\n\n\n\n

    None of them pushes anything to you, so you build the audit trail by polling. Sync the activity log by walking pages from offset 0 and stopping at the first row you already have, de-duplicating on activityId<\/code>. Diff the session list against the last poll and alert on new devices and on API sessions from IPs you don’t own. Read the notification settings back every day and compare them to what you expect, because the first thing an intruder wants to switch off is the login alert. And remember that logging a session out doesn’t touch your API key or password. A real incident needs all three.<\/p>\n\n\n\n

    TL;DR<\/h2>\n\n\n\n