Bitkoin

Koja je veza između nestašice benzina na jugoistoku Amerike i bitkoina?
Kako su američki zdravstveni radnici postali taoci ruskih tinejdžera?
Da li je bitkoin samo jedna velika piramidalna šema?

• The Colonial pipeline ransomware cyberattack: How a major oil pipeline got held for ransom - Vox — A major oil pipeline is coming back online after a several-day outage resulting from a cyberattack that caused gas prices to surge and gas stations in multiple states to experience shortages. After nearly a week of being shut down, the Colonial Pipeline Company announced on May 12 that it was restarting pipeline operations and that the supply chain would “return to normal” within the next several days.
• Health care provider Universal Health Services hit with cyberattack — A nationwide cyberattack has crippled operations at Universal Health Services, one of the nation's largest health care providers. As a result, health care personnel reportedly began keeping records on paper as computer systems began failing over the weekend and some hospitals have sent incoming ambulances to other neighboring hospitals.
• Environmental Concerns Arise Over Energy Needed To Mine Bitcoin : NPR — In one upstate New York community, a Bitcoin mining operation is drawing criticism from people who say the natural gas burned to make the cryptocurrency is causing too much pollution.
• Bitcoin Security Model: Trust By Computation — Bitcoin is a distributed consensus network that maintains a secure and trusted distributed ledger through a process called “proof-of-work.” Bitcoin fundamentally inverts the trust mechanism of a distributed system. Traditionally, as we see in payment and banking systems, trust is achieved through access control, by carefully vetting participants and excluding bad actors. This method of trust requires encryption, firewalls, strong authentication and careful vetting. The network requires investing trust in those gaining access.