Hacker badge is achieved by hacking Portals.

Explorer badge has 5 tiers and each tier has a required number of hacks to achieve it.

  • Bronze – 2000 hacks
  • Silver – 10000 hacks
  • Gold – 30000 hacks
  • Platinum – 100000 hacks
  • Onyx – 200000 hacks

Here are all the badges:

And hacker badge info:

hacker-info