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| 1 | +# Detection Rules |
| 2 | + |
| 3 | +This section controls how Check recognizes and responds to phishing threats. Most users can leave these at default settings, but here's how to manage them. |
| 4 | + |
| 5 | +#### Understanding How Detection Works |
| 6 | + |
| 7 | +Check uses a constantly updated list of rules to identify fake Microsoft login pages. Think of it like antivirus definitions - they need to be kept current to protect against new threats. |
| 8 | + |
| 9 | +### Detection Configuration |
| 10 | + |
| 11 | +#### **For most users:** |
| 12 | + |
| 13 | +1. Leave the "Config URL" field empty or at its default |
| 14 | +2. Set "Update Interval" to 24 hours |
| 15 | +3. Click "Save Settings" |
| 16 | + |
| 17 | +#### **For organizations with custom security rules:** |
| 18 | + |
| 19 | +{% hint style="warning" %} |
| 20 | +#### What if Settings are Grayed Out? |
| 21 | + |
| 22 | +If some settings appear grayed out with a little lock icon, it means your organization's IT department has set these for you. This is normal in business environments - your IT team wants to make sure everyone has the same security settings. |
| 23 | +{% endhint %} |
| 24 | + |
| 25 | +1. Enter your organization's custom rules URL (provided by IT) |
| 26 | +2. Set update interval based on your security requirements: |
| 27 | + * High security environments: 6-12 hours |
| 28 | + * Standard environments: 24 hours |
| 29 | + * Limited bandwidth: 48-72 hours |
| 30 | + |
| 31 | +#### Updating Rules Manually |
| 32 | + |
| 33 | +Sometimes you need to update rules immediately: |
| 34 | + |
| 35 | +1. **When to do this:** |
| 36 | + * You've heard about a new phishing campaign |
| 37 | + * Check isn't detecting a threat it should |
| 38 | + * Your IT department asks you to update |
| 39 | +2. **How to do it:** |
| 40 | + * Go to Detection Rules section |
| 41 | + * Click "Update Rules Now" |
| 42 | + * Wait for the "Rules updated successfully" message |
| 43 | + |
| 44 | +### Understanding the Configuration Overview |
| 45 | + |
| 46 | +You'll see information about your current rules: |
| 47 | + |
| 48 | +**In the formatted view, look for:** |
| 49 | + |
| 50 | +* **Version number** - Higher numbers are newer |
| 51 | +* **Last Updated** - Should be recent (within your update interval) |
| 52 | +* **Total Rules** - More rules generally mean better protection |
| 53 | + |
| 54 | +**If you see problems:** |
| 55 | + |
| 56 | +* Very old "Last Updated" date → Click "Update Rules Now" |
| 57 | +* Version shows "Error loading" → Check your internet connection |
| 58 | +* No rules showing → Contact support |
| 59 | + |
| 60 | +### Troubleshooting Rule Updates |
| 61 | + |
| 62 | +#### **Problem: Rules won't update** |
| 63 | + |
| 64 | +1. Check your internet connection |
| 65 | +2. Try clicking "Update Rules Now" again |
| 66 | +3. If using custom rules URL, verify the URL is correct |
| 67 | +4. Contact your IT department if the problem persists |
| 68 | + |
| 69 | +#### **Problem: Extension seems slow after rule update** |
| 70 | + |
| 71 | +1. Wait 5-10 minutes for the new rules to fully load |
| 72 | +2. Restart your browser |
| 73 | +3. If still slow, try updating rules again |
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