message: Increase difficulty of "Blockchain Tier 1" by 2 stars
diff: name: 'Blockchain Tier 1'
  category: 'Security through Obscurity'
  description: 'Learn about the Token Sale before its official announcement.'
  - difficulty: 3
  + difficulty: 5
  hint: 'The developers truly believe in "Security through Obscurity" over actual access restrictions.'
  hintUrl: 'https://bkimminich.gitbooks.io/pwning-owasp-juice-shop/content/part2/security-through-obscurity.html#learn-about-the-token-sale-before-its-official-announcement'
  key: tokenSaleChallenge
  