| Similarity | Rank | |
|---|---|---|
| DoS | 0.880 | 77234 |
| botnets | 0.853 | 88730 |
| botnet | 0.826 | 62942 |
| phishing | 0.770 | 29271 |
| cybercriminals | 0.750 | 84265 |
| malware | 0.742 | 12409 |
| cybercrime | 0.740 | 64029 |
| Phishing | 0.723 | 68142 |
| Malware | 0.714 | 45540 |
| XSS | 0.713 | 84911 |
| hackers | 0.712 | 14353 |
| firewalls | 0.710 | 31881 |
| P2P | 0.702 | 34424 |
| Sophos | 0.691 | 87901 |
| anti-spam | 0.687 | 60734 |
| Firewalls | 0.686 | 90626 |
| VPNs | 0.686 | 69589 |
| DNS | 0.685 | 15123 |
| file-sharing | 0.682 | 59157 |
| Symantec | 0.670 | 37712 |
| network-based | 0.669 | 98471 |
| Stuxnet | 0.668 | 72126 |
| anti-virus | 0.666 | 27309 |
| ISPs | 0.665 | 27447 |
| Firewall | 0.662 | 37660 |