Up to 350,000 people affected by Capcom ransomware attack
Update following the initial disclosure suggests personal information and sensitive corporate material was compromised
Capcom has confirmed an attack which crippled its systems earlier this month was a customised ransomware attack and may have compromised the personal details of up to 350,000 individuals.
The Japanese video games developer detected a security breach that affected its internal file and email systems on 2 November, when some of the company’s networks experienced issues that limited employee access to Capcom systems.
It’s since become clear the company was targeted by a group called Ragnar Locker, which destroyed and encrypted data on its servers. Capcom approached the police and began an internal investigation to understand the full scale of the attack.
Further information now confirms anxieties that personal information, employees’ data, and sensitive corporate material was compromised during the incident, with up to 350,000 individuals affected.
“Investigation and analysis of this incident took additional time due to the targeted nature of this attack, which was carried out using what could be called tailor-made ransomware, as was covered in some media reports, aimed specifically at the company to maliciously encrypt the information saved on its servers and delete its access logs,” the company said.
“Capcom regrets that this report could not be made sooner than today. The company asks that everyone potentially affected by this incident practice an abundance of caution, looking out for any suspicious packages received by mail or messages that could potentially be received.”
The personal information of former employees compromised includes their names and signatures, addresses and passport information, while the personal information of current employees includes name and HR information, as well as name and signature. Other information stolen includes sales reports and financial data.
Sign up today and you will receive a free copy of our Future Focus 2025 report - the leading guidance on AI, cybersecurity and other IT challenges as per 700+ senior executives
Among the confidential corporate information compromised in the hack, the company’s sales data, business partner information, sales documentation, and development documents, were among the items accessed.
None of the at-risk data contained credit card information since all online transactions are handled by a third-party service provider. Capcom, as such, doesn’t hold such information itself. The exact number of people affected, meanwhile, cannot be determined as some of the logs were lost in the attack, so the company offered the maximum number of individuals potentially affected.
RELATED RESOURCE
The business guide to ransomware
Everything you need to know to keep your company afloat
To mitigate the effects, the company has installed protective software onto its systems, shut down suspicious transmissions, and carried out a reconstruction of its servers. Capcom has also commissioned a third-party security firm to inspect system issues stemming from the incident, the results of which will be published separately.
The firm has also arranged a structure of reporting and consulting with a major software company, security specialist vendor and law offices with extensive knowledge of security.
06/11/2020: Games company Capcom hit by cyber attack
Japanese games developer Capcom has suffered a security breach that affected its internal file and email systems, the company has revealed.
Famous for video games such as “Resident Evil” and “Street Fighter”, Capcom said it first noticed problems in the early hours of 2 November, when some of the Capcom Group networks experienced issues that limited access to certain systems, including email and file servers.
The company has confirmed that this was due to "unauthorised access carried out by a third party" and that it has "halted some operations of its internal networks as of November 2".
Capcom has not said who was behind the attack or how they managed to breach its systems. It added that, at present, “there is no indication that any customer information was breached”.
“This incident has not affected connections for playing the company's games online or access to its various websites,” the statement added. It also said that the company is now cooperating with law enforcement agencies “as well as other related authorities while both carrying out an investigation and taking measures to restore its systems”.
According to reports from Bleeping Computer, Capcom may have been the victim of a ransomware attack as the publication was able to access a ransom note created on Capcom's computers during the attack.
In a separate announcement, Capcom warned that it was not in a position to respond to contact requests made through its investor relations form.
“We are currently unable to reply to inquiries and/or to fulfill requests for documents via this form following the network issues that began November 2, 2020,” said Capcom.

Keumars Afifi-Sabet is a writer and editor that specialises in public sector, cyber security, and cloud computing. He first joined ITPro as a staff writer in April 2018 and eventually became its Features Editor. Although a regular contributor to other tech sites in the past, these days you will find Keumars on LiveScience, where he runs its Technology section.
-
Trump's AI executive order could leave US in a 'regulatory vacuum'News Citing a "patchwork of 50 different regulatory regimes" and "ideological bias", President Trump wants rules to be set at a federal level
-
TPUs: Google's home advantageITPro Podcast How does TPU v7 stack up against Nvidia's latest chips – and can Google scale AI using only its own supply?
-
15-year-old revealed as key player in Scattered LAPSUS$ HuntersNews 'Rey' says he's trying to leave Scattered LAPSUS$ Hunters and is prepared to cooperate with law enforcement
-
The Scattered Lapsus$ Hunters group is targeting Zendesk customers – here’s what you need to knowNews The group appears to be infecting support and help-desk personnel with remote access trojans and other forms of malware
-
Impact of Asahi cyber attack laid bare as company confirms 1.5 million customers exposedNews No ransom has been paid, said president and group CEO Atsushi Katsuki, and the company is restoring its systems
-
The US, UK, and Australia just imposed sanctions on a Russian cyber crime group – 'we are exposing their dark networks and going after those responsible'News Media Land offers 'bulletproof' hosting services used for ransomware and DDoS attacks around the world
-
A notorious ransomware group is spreading fake Microsoft Teams ads to snare victimsNews The Rhysida ransomware group is leveraging Trusted Signing from Microsoft to lend plausibility to its activities
-
Volkswagen confirms security ‘incident’ amid ransomware breach claimsNews Volkswagen has confirmed a security "incident" has occurred, but insists no IT systems have been compromised.
-
The number of ransomware groups rockets as new, smaller players emergeNews The good news is that the number of victims remains steady
-
Teens arrested over nursery chain Kido hacknews The ransom attack caused widespread shock when the hackers published children's personal data