Coincheck, Inc.

The value of the major cryptocurrencies fell due to the news of the Coincheck hack, which affected the Japan-based digital exchange. The NEM value fell by more than 16 per cent in a single day.

Except for Bitcoin, the company halted deposit and withdrawal activities. The exchange also declared that it looked into any "unauthorised access" to the platform.

NEM is the tenth-largest cryptocurrency by market capitalization, and the business claims that the hackers stole cryptocurrency valued at half a billion US dollars.

Coincheck, which has 260,000 users affected by the cyber heist, would reimburse these customers for around 46.3 billion yen using its cash.

Source: https://securityaffairs.com/68341/data-breach/coincheck-refunds-customers.html

TPRM report: https://scoringcyber.rankiteo.com/company/coincheck

"id": "coi422181223",
"linkid": "coincheck",
"type": "Breach",
"date": "01/2018",
"severity": "100",
"impact": "5",
"explanation": "Attack threatening the organization’s existence"

{'affected_entities': [{'customers_affected': '260,000',
                        'industry': 'Financial Services',
                        'location': 'Japan',
                        'name': 'Coincheck',
                        'type': 'Cryptocurrency Exchange'}],
 'description': 'The Coincheck hack affected the Japan-based digital exchange, '
                'leading to a significant fall in the value of major '
                'cryptocurrencies. The NEM value fell by more than 16 per cent '
                'in a single day. The company halted deposit and withdrawal '
                'activities except for Bitcoin and investigated any '
                'unauthorised access to the platform. NEM is the tenth-largest '
                'cryptocurrency by market capitalization, and the hackers '
                'stole cryptocurrency valued at half a billion US dollars. '
                'Coincheck, which has 260,000 users affected by the cyber '
                'heist, would reimburse these customers for around 46.3 '
                'billion yen using its cash.',
 'impact': {'financial_loss': '500 million USD',
            'operational_impact': 'Halted deposit and withdrawal activities '
                                  'except for Bitcoin',
            'systems_affected': 'Cryptocurrency Exchange Platform'},
 'motivation': 'Financial Gain',
 'response': {'containment_measures': 'Halted deposit and withdrawal '
                                      'activities',
              'recovery_measures': 'Reimbursement of 46.3 billion yen to '
                                   'customers'},
 'title': 'Coincheck Hack',
 'type': 'Cyber Heist'}