Real-time status check for Slack. See if it's just you or everyone experiencing issues.
Slack is a business messaging platform used by security teams for incident response coordination and daily communication.
Category: Collaboration | Website: slack.com
ipconfig /flushdns or sudo systemd-resolve --flush-caches.Slack is the dominant business messaging platform — used by security teams worldwide for daily team chat, incident response coordination, alerting integrations, and SOC operations. Many security teams effectively run their daily operations through Slack: alert routing, on-call coordination, post-incident discussion, vendor communication, vulnerability triage. When Slack is down, security operations slow significantly because the coordination layer is removed.
Slack outages affect: messaging (channel and DM messages), file uploads, search, API and webhooks (used by alert integrations and bots), Connect (cross-workspace channels), Calls (huddles and Slack-native voice). Different components fail independently — search can be down while messaging works, or webhooks degrade while UI is fine.
For status verification: status.slack.com is the official component-level status page. The @SlackStatus Twitter account posts updates. For SOC and security teams, Slack outages are operationally significant — alerting integrations stop functioning, on-call coordination slows. Backup communication and alerting paths matter more than for many other tools.
SOCs use Slack for analyst chat, alert discussion, escalation coordination. Outages slow operations significantly. Backup channels (Microsoft Teams, Discord, phone bridge for major incidents) ensure coordination continues. Alerting itself should not depend on Slack — see PagerDuty/email backup pattern.
Security incidents typically have a dedicated Slack channel for coordination. When Slack is down during incidents, switch to backup channel (Zoom, Signal, conference bridge) per documented IR playbook. Pre-establish the backup channel; do not improvise during incidents.
Many security teams discuss vulnerability findings in Slack channels with engineering teams. Outages slow triage but rarely critical. Have asynchronous backup (email, Jira tickets) for vulnerability tracking that does not depend on Slack continuous availability.
Slack Connect enables cross-organisation channels. Outages affect vendor communication. For critical vendor communication (active engagements, support tickets), email and phone remain available; Slack Connect is convenience.
Many security tools integrate with Slack via bots and webhooks (vulnerability scanners, SIEM alerts, threat intel feeds, GitHub security advisories). When Slack API is degraded, integrations stop. Have alternative delivery paths for critical-tool alerts.
Security alerts (incident detection, on-call paging, vulnerability disclosures) need redundant delivery paths. Slack alone is single-point-of-failure. Add email, SMS, PagerDuty as backup paths for high-severity alerts.
Slack search has limits and history retention varies by plan. Critical knowledge (runbooks, post-incident learnings, decisions) should live in proper documentation (Notion, Confluence, GitHub wiki) — Slack is for discussion, not documentation.
Slack workspace data export requires admin action. Plan for data portability: periodic exports, especially before contract changes or migrations. Most workspaces never export and lose access to old discussions during transitions.
Defaulting to all-channel notifications for security teams creates noise that obscures real incidents. Tune notifications by channel importance; reserve sound/banner alerts for genuinely critical channels.
Slack login issues can be VPN, SSO provider (Okta, Azure AD), or Slack-side. Test logging in via web browser without VPN to isolate. SSO provider outages are sometimes mistaken for Slack outages because login fails.
Slack DMs are accessible to workspace admins (with admin tools) and not end-to-end encrypted. For sensitive communication (credentials, vulnerability details, sensitive incident info), use Signal, Wire, or other E2E encrypted alternatives.
curl -X POST -H "Content-type: application/json" --data "{\"text\":\"Test\"}" YOUR_WEBHOOK_URL. If it returns "ok" and message appears in channel, webhooks work. If not, check status.slack.com for webhook issues and your webhook URL validity.