ShadowByt3s Claims Starbucks Breach Involving 10 GB of Data From S3 Bucket
Summary
ShadowByt3s claims it exfiltrated 10 GB of Starbucks source code, firmware and management tools from an S3 bucket. The article reports a ransom deadline of April 5, 2026; the breach remains unconfirmed.
Key points
- ShadowByt3s, with the post attributed to BlackVortex1, claims it exfiltrated 10 GB from Starbucks' sbux-assets S3 bucket.
- The claimed files include beverage dispenser and Mastrena II firmware, FreshBlends code, and Siren System/Blue Sparq controller firmware.
- The article says the actor shared proof through Mega[.]nz and Telegram, is recruiting insiders with a proposed 30/70 split, and set an April 5, 2026 ransom deadline.
- The article warns that exposure of beverage-machine firmware and management tools could create operational and supply-chain risks; it does not provide independent confirmation of the claimed breach.
Article Details
- Victim
- Starbucks
- Encryption Status
- Unknown; the article does not report whether data or systems were encrypted.
- Exfiltration Status
- Claimed by ShadowByt3s; not independently confirmed in the article.
- Exfiltrated Data
- The group claims the data included proprietary source code, beverage dispenser firmware, Mastrena II espresso machine logic, FreshBlends smoothie station code, Siren System/Blue Sparq controller firmware, and management and operational tools.
- Exfiltrated Size
- 10 GB (claimed)
- Ransom Demand
- Not disclosed
- Leak Status
- ShadowByt3s claims a breach and says it provided proof via Mega.nz and Telegram; the article does not confirm a public leak or the authenticity of the data.
Threat Actors
Products
Blue SparqStolen files include beverage dispenser firmware (hex), Mastrena II espresso machine logic, FreshBlends smoothie station code, and controller firmware for Siren System/Blue Sparq.FreshBlendsStolen files include beverage dispenser firmware (hex), Mastrena II espresso machine logic, FreshBlends smoothie station code, and controller firmware for Siren System/Blue Sparq.Mastrena II30/70 split, set a ransom deadline of April 5, 2026 at 5:00 PM, and the exposed beverage dispenser and Mastrena II firmware create critical operational and supply-chain risks.Siren SystemStolen files include beverage dispenser firmware (hex), Mastrena II espresso machine logic, FreshBlends smoothie station code, and controller firmware for Siren System/Blue Sparq.