Hunting for North Korean Fiber Optic Cables

Original Article ↗ Hacker News Discussion ↗

Hobbyists and network engineers dissect North Korea’s tiny public internet footprint, its likely fiber routes along railways, and how its tightly controlled internal networks are segmented from the global web. Commenters link this physical and logical isolation to the regime’s surprisingly capable offensive cyber operations, arguing that a pariah state with few economic options and little concern for diplomatic fallout can channel talent into crime and espionage. The thread widens into debate over historical responsibility for the Korean peninsula’s current state, from the devastation of the Korean War to nuclear deterrence and the ethics of great‑power intervention.

North Korean Internet & Intelligence Operations

  • Early experiences probing DPRK infrastructure found strong perimeter firewalls and quick incident response, making intranet access via compromised public servers difficult.
  • Leaked NSA tooling and documents mention targeting North Korean antivirus (Silivaccine) and Red Star OS, suggesting past penetration but likely increasing hardening over time.
  • Commenters generally assume NSA and others have had some access but see DPRK as a particularly challenging environment for long-term, stealthy operations.

Endpoints, Remote Access, and User Software

  • Discussion of client-side tools:
    • “Netkey”/“Oconnect” reportedly required for domestic network access.
    • “Hangro” described as a VPN-like system allowing external users to connect back into DPRK for messaging.
  • It remains unclear whether any endpoints simultaneously bridge intranet and full internet, but such dual-homed systems are seen as a prime theoretical vector.

Mobile Networks and Tourist Access

  • One claim: three mobile networks (citizen, government/military, and tourist-only), with the tourist network having internet connectivity via special SIMs.
  • A traveler disputes this, reporting only voice calls from Pyongyang hotels and highly restricted data access, with one casino terminal in Rason as a rare internet outlet.
  • Overall status of tourist mobile internet is left as uncertain.

IPv4 Space, Routing, and Politics

  • DPRK’s small visible IPv4 space (about 1,024 addresses) is attributed to limited need for externally reachable infrastructure rather than inability to obtain more.
  • Multiple comments explain that IPv4 is still obtainable via RIR policies, transfers, or leases; national actors could get more if desired.
  • Routing patterns are seen as largely driven by geography (land borders with China/Russia, rail/road fiber corridors) but also aligned with political relationships.

Fiber Optic Deployment & Railroad Evidence

  • Several comments affirm that small trackside boxes are compatible with fiber: modern fiber tolerates tight bend radii, and modest enclosures suffice for splices.
  • Burying fiber is viewed as more work upfront but more robust than aerial deployment (less exposure to weather, animals, and “flying backhoes”).
  • Running fiber along rail rights-of-way is considered standard practice globally.
  • One commenter finds the article’s railroad-based inference weak, arguing true repeater sites should be larger and that the photos could just show generic railway equipment.

Cyber Operations & Regime Context

  • Posters debate why DPRK appears prominent in cybercrime:
    • Some emphasize pariah status, sanctions, and the regime’s need for hard currency, which lower the cost of engaging in criminal hacking.
    • Others argue most large states could do similar things but refrain due to reputational and legal constraints.
    • Disagreement over the degree of coercion vs incentive (e.g., “do this or your family suffers” vs simply offering relatively high local wages).
  • There is skepticism that DPRK hackers are uniquely “elite”; some see them more as well-resourced scammers and APT operators, comparable to other state or tolerated-criminal groups.

Historical and Moral Debates

  • Long, contentious subthread on:
    • Responsibility for DPRK’s current state (US bombing and partition vs DPRK leadership and Soviet/Chinese roles).
    • Whether more aggressive US action in Korea or against China/USSR (including hypothetical nuclear use) would have prevented later suffering or instead led to far greater catastrophe.
    • Comparisons between DPRK’s internal atrocities and US-led wars abroad, with some arguing Western crimes receive too little scrutiny.
  • No consensus emerges; positions range from viewing DPRK as a uniquely egregious failure of humanity to seeing it as one example among many great-power-inflicted tragedies.

Miscellaneous

  • One commenter notes that North Korea’s national standard (KPS 9566) contributed several Unicode emojis, including hot beverage, umbrella with rain, and lightning bolt.