
In March 2001, we launched a new management strategy to pave the way for further growth. We emphasized establishing an information security business as an essential part of the Internet infrastructure.
Now everyone uses all sorts of IT devices, making information security vital to our lives. In our information security business, we built our expertise on customer-oriented proposals, while we are considering connection and complement other systems. We not only simply offer in-house security products, but also provide proposals for systems with built in security functions for our customers and provide wide support through electronic device investigation, analysis and eDiscovery (electronic discovery) that are central for data-related incidents and disputes.
The technologies underpinning these safeguards are C4 cipher and Digital Forensics.


The volume of information is ballooning. Technological innovations and the spread of Internet and other networks have driven the digitization of much information, exposing it to diverse risks. The numerous security issues include unauthorized access, eavesdropping, computer viruses, and spam emails, making it more important than ever to protect valuable information.
We offer services to assess vulnerability to website tampering and unauthorized access, as well as an earthquake alert service to minimize disaster impacts. We provide total security consulting to protect customer information by drawing on these services and the expertise we have accumulated in cipher technologies from developing proprietary packages and proposing solutions.


Digital data is everywhere because of the ubiquity of cloud computing, social networking services, communication services, blogs and smartphones. While such services have enhanced convenience, they have come at the cost of more incidents of information leaks, fraud, and other mishaps. People now accept that they need to safeguard against these risks.
Digital forensics is vital to addressing risks because it tracks and identifies data origins. Because it swiftly identifies facts and ensures accountability, digital forensics can minimize and hedge against the impact of data incidents.
Focus Systems offers an array of digital forensics services.


In recent years, more Japanese companies have been embroiled in lawsuits in the United States and other countries, especially in patents and other areas of intellectual property rights, but also in government investigation and product liability cases.
Focus Systems offers total support for eDiscovery processes such as preserving, collecting and analyzing evidence in Japan by experienced surveyor and a high level of expertise. We can also support even a part of the processes you would like us to do. You can minimize the cost and the time for transportation, preservation, and collection with us.
Since its establishment in 1977, Focus Systems has provided total system solutions for the growing IT society. We established the Institute of Digital Forensics in 2004 and have been leading the world of digital forensics in Japan. Our services and products have been adopted by a number of the Government Agencies of Japan.
Our abundant experiences in digital forensics and eDiscovery fields ensure efficient, fast, and successful results for you.
Evidence Collection Services
We provide services that duplicate HDD with our duplicating machines.
Digital evidence is fragile and can be easily deleted. Risk of HDD failure or breakage is eliminated by storing the backup. Worry about rewriting the data of the HDD for survey can be eliminated by creating a complete copy of the HDD.
We can preserve and collect the evidence of the Japanese companies in order to reduce your cost and time for evidence acquisition abroad.
Data Culling
1. Search
Focus Systems accurately extracts the information you want by fast search function from within a large amount of e-mail and Microsoft Office documents and so on.
We support from keyword search to an advanced search that combines attribute search and full-text search.
Of course we support Japanese keyword search for non-Japanese analysis environment.
In addition to Japanese search, Korean, Chinese, and Arabic, and other languages are supported.
2. De-duplication
While you can easily create a copy of digital data, the same content files are scattered in various locations.
We de-duplicate the same content files such as data backup files using file hashing.
The same content files are identified as de-duplication targets by their content even if the file name is changed.
Thus the cost and the time for data processing are reduced, which reduces the burden on you.