| Answer | Crossword Clue |
|---|---|
| POPUPAD | Surfing intrusion |
| POPUP | Online intrusion |
| POPUPWINDOW | Online intrusion |
| AHEM | Courteous intrusion |
| STYE | Optical intrusion? |
| TRESPASS | Unlawful intrusion |
| PAPA | First bear to detect Goldilocks's intrusion |
| SANCTUM | Where one is free from intrusion |
| ANTIVIRUS | Designed to prevent intrusion, in a way |
