A security notification is a vendor-issued bulletin that describes a vulnerability or product security issue and identifies the affected products, versions, and recommended remediation. It often includes severity, CVE references when available, and practical guidance such as patching, configuration changes, mitigations, or workarounds.
In cyber security, these notices are critical because they help defenders quickly decide whether they are exposed and what action to take. In industrial environments, a notification may arrive before every technical detail is public, so teams use it for triage: checking inventories, matching firmware or software versions, and reviewing remote-access paths and segmentation. Attackers also watch these bulletins to infer which systems may be weak or slow to patch. A good security notification turns uncertainty into a response plan, even when exploitation details are still limited.