Sagawa: unauthorized access to the parcel tracking service
On September 30 Sagawa Express found unauthorized access to the parcel tracking service on its website and partly restricted access. Its fifth report on October 23 put the personal data that may have leaked at up to about 53.23 million records, counting the same person more than once. Affected are names, addresses and phone numbers of senders and recipients on waybills from June 21 to September 30; names, addresses and phone numbers of customers with freight contracts; and names, addresses, phone numbers, email addresses and member IDs of Smart Club members. Card data and passwords are not included, and no misuse has been found. Removing duplicates continues with an outside firm. Web tracking reopened the same day, while the tracking API, Hikyaku parcel bookings, delivery address changes, Kaishu-kun and some other services stayed stopped. Misato Town and Ogata Village in Akita, which ship hometown tax gifts through Sagawa, said their donors' data may be included. On 26 October Zeria Pharmaceutical said delivery data for its ZERIA ONLINE shop may be included.
Disclosed
2026-09-30
Organizations involved
4
Leaked or at risk
53.2M
53,230,000
Downtime
Unknown
Timeline
- Detected, Disclosed 2026-09-30
- 1 days
Attack or cause
- Method
- [Intrusion]
- Impact
- [Data leak][Service outage]
- Entry point
- Web app
Data exposed or at risk
Supply chain
- Organizations listed on this site
- 4
Services hit
Organizations involved
[Breached][Critical]Kyoto, Kyoto, MinamiTransport and postal services53,230,000 leaked
Sagawa Express Co., Ltd.The maximum counts the same person more than once (fifth report).
[Through a supplier][Major]Akita, MisatoMunicipality
Misato TownNames, addresses and phone numbers of hometown tax donors whose gifts Sagawa delivered from late June; the number is not yet known.
[Through a supplier][Major]Akita, OgataMunicipality
Ogata VillageNames, addresses and phone numbers of hometown tax donors whose gifts Sagawa delivered from late June; the number is not yet known.
[Through a supplier][Major]Tokyo, ChuoManufacturing
Zeria Pharmaceutical Co., Ltd.Sender and recipient names, addresses and phone numbers for ZERIA ONLINE orders shipped by Sagawa in the roughly 100 days to 30 September.
Sources
- [1][News]佐川急便「お荷物問い合わせサービス」不正アクセスにより情報流出の可能性、ウェブの荷物問い合わせなどを停止中INTERNET Watch · 2026-10-02
- [2][Official]「お荷物問い合わせサービス」の再開および 個人情報の流出に関する調査状況について(第5報)Sagawa · 2026-10-23
- [3][News]佐川急便、「お荷物問い合わせサービス」への不正アクセスで最大5323万件の個人情報流出の可能性、サービスは再開INTERNET Watch · 2026-10-23
- [4][Official]【ふるさと納税】佐川急便株式会社に対する不正アクセスに伴う個人情報の漏えいのおそれについてMisato Town · 2026-10-14
- [5][Official]佐川急便株式会社への不正アクセスに伴う個人情報漏えいのおそれについてOgata Village · 2026-10-21
- [6][Official]配送委託先(佐川急便)における個人情報流出の可能性に関するお知らせとお詫びZeria Pharmaceutical · 2026-10-26