BuySell Technologies Moves from Perimeter-Based Security to Zero Trust with Netskope SASE/SSE to Support Rapid Business Growth

The reuse business involves handling personal information in many aspects of its operations. As BuySell Technologies grew rapidly, the limitations of its existing perimeter-based security model became increasingly apparent. Takahiro Senbo, General Manager, Information Systems Department, Product Development Division, explains the challenges.

“We develop our core system in-house to manage the entire process from appraisal and purchasing through to sales. When employees worked at customers’ homes or in stores, they accessed internal systems from company-issued devices through a VPN. However, as our workforce and store network expanded, employees increasingly needed to work outside our existing closed network, making it more difficult to maintain consistent endpoint security. Integrating companies acquired through M&A into the existing closed network in order to standardize security policies also required significant time, effort, and cost. At the same time, we needed greater visibility into the cloud services being adopted by individual departments.”

To establish security that could respond quickly and flexibly as the business grew, BuySell Technologies turned to zero trust. A cloud-based approach would allow the company to apply consistent security policies across the group, regardless of whether users were inside or outside the corporate network, while strengthening governance. In 2023, the company began its transition from perimeter-based security to zero trust.

“Of the three solutions, Netskope offered the strongest CASB [Cloud Access Security Broker] capabilities, which were particularly important to us. It had advantages in areas such as shadow IT visibility, log visibility, flexible policy configuration to meet business requirements—for example, allowing users to view content while preventing uploads—user coaching capabilities that provide warnings and guidance, and domain identification. Because our employees use iPhones and iPads when making in-home visits, iOS support was also essential. Netskope also met requirements such as helping us isolate and troubleshoot issues in a zero trust environment. From both an operational and security perspective, having CASB, SWG [Secure Web Gateway], DLP [Data Loss Prevention], ZTNA [Zero Trust Network Access], and other capabilities integrated into a single SASE/SSE platform was another major deciding factor.”

BuySell Technologies selected Tokyo Electron Device (TED) as its implementation and deployment partner. “TED had extensive knowledge and experience with Netskope, and through its support during the PoC, we felt it was a partner we could trust,” Maehara says.

The evaluation process began in 2023 with PoCs of Netskope and two other products. After comparing functionality and operational usability, BuySell Technologies conducted a second PoC to further validate Netskope’s capabilities. Based on those results, the company formally selected Netskope in April 2025 and began implementation, starting with a small-scale rollout toward the end of the year.

As the Information Systems Department worked toward managing Netskope internally, the team also needed to build new operational knowledge and expertise. “During implementation, TED provided timely advice and technical support on a wide range of issues through our regular meetings. During the organization-wide rollout, we also used its implementation support services and received extensive assistance. Now that we are in the operational phase, TED provides regular reports through its reporting service, and we use those insights to improve our operations. Through TED’s ongoing, hands-on support, we have been able to build the knowledge and expertise we need to bring Netskope operations in-house,” Maehara says.