What's inside the QR code menu at this cafe?

Security Failure & Vulnerability Nature

• API behind QR-code ordering had effectively no authentication or authorization, with predictable/sequential identifiers.
• Commenters debate whether this was:
  • A deliberate “design decision” born of negligence / “don’t care” culture, or
  • A botched deployment / debug configuration accidentally left in place.
• Consensus that at minimum it’s a glaring failure of basic access control, exposing: PII (e.g., phone numbers), order histories, table-level activity, and restaurant-level financials across thousands of venues.

Disclosure, Ethics, and Legal Risk

• Many argue the article was irresponsible:
  • No attempt at private/responsible disclosure.
  • Detailed “how-to” description enabling anyone to reproduce the exploit.
  • Live testing on unsuspecting diners and wasting food.
• Others defend public “name-and-shame,” claiming private reports often get ignored and only publicity forces change.
• Several posts cite computer-misuse / fraud-style laws (India and elsewhere) where:
  • Enumerating IDs or accessing data you “obviously” shouldn’t see can be criminal, even without bypassing technical barriers.
  • The author may have legal exposure, especially after causing direct financial cost.
• Standard responsible-disclosure pattern (contact, wait ~90 days, then go public) is repeatedly mentioned as the norm that wasn’t followed.

Potential Harm & Severity

• Some frame this as “only” a privacy and mild business-intelligence leak; worst active abuse would be prank orders.
• Others highlight more serious risks: stalking, relationship conflicts, doxxing, religious/offensive orders (e.g., meat to vegetarians), allergy attacks, and large-scale disruption of restaurants’ operations.

QR Menus: UX, Privacy, and Business Incentives

• Strong split on QR-based ordering:
  • Supporters like faster, waiter-free ordering, easier group payments, continuous reordering, and up-to-date menus.
  • Opponents dislike small-screen scrolling, app installs, network dependence, and loss of human service; some refuse QR-only venues.
• Recurrent concern that QR systems primarily serve:
  • Data collection and profiling across many restaurants,
  • Labor reduction (fewer waiters) and dynamic pricing,
  • With little real benefit or transparency for diners.

India, Regulation, and Aftermath

• Multiple comments note a broader Indian context: security often deprioritized, bug reports ignored for years, enforcement focused more on financial fraud than privacy.
• References to new data-protection law suggest the vendor could face serious penalties, though many expect enforcement asymmetry (researcher targeted more than company).
• The original article was taken down after a legal notice; archived copies and mainstream coverage now frame it as a “hack,” which some fear worsens public and legal perception of security research.