Ransomware victim disclosure
← All victimsOptimum Design Associates
listed as Optimum Design · Claimed by Abyss · listed 2 months ago
Status timeline
- Listed
Mar 28, 2026
- Data leaked
At a glance
- Group
- Abyss
- Status
- Data leaked
- Country
- United Kingdom
- Sector
- Electronics/Engineering
- Listed on leak site
- Mar 28, 2026
- Data size
- 795GB
- Ransom demanded
- $50
About the victim
AI dossier — public-source company profileOptimum Design Associates (an Emerald Technologies Company) is a UK-based provider of PCB design services and electronic engineering. The company offers professional PCB layout, design, and related engineering services to clients across the electronics sector. It operates under the Emerald Technologies group umbrella.
- Industry
- PCB Design & Electronic Engineering Services
Attack summary
Severity: high — Data has been confirmed as published (disclosed status: data_published) with 795 GB of exfiltrated business data including likely proprietary engineering and design files; significant exfiltration at scale from an engineering firm.The Abyss ransomware group claims to have exfiltrated 795 GB of uncompressed data from Optimum Design Associates and has published the data, providing download links on their leak site.
Data the group says was taken
AI dossier — extracted from the leak post- Company files (795 GB uncompressed)
- Engineering/PCB design data (inferred from industry)
- Business documents
What the group claims
PCB design services data, electronic engineering solutions, customer data including Amazon, Siemens, Northrop Grumman, Lockheed Martin
The leak post
captured from the group's site```
let data = [
{
'title' : 'thinlinetech.com',
'short' : 'thinlinetech.com 29Gb uncompressed data',
'full' : 'Thinline Technologies <br>' +
'Thinline Technologies offers reliable IT consulting and expert computer and network support services to businesses in the Baltimore metro area.<br> They specialize in network administration, technology planning, and help desk services, focusing on increasing productivity and profitability for small to mid-size businesses.<br>'+
'password: 6oGfyIRISQmmI3Ge2kEeyu7hbzONONEFpkcnhC1S4Ygk4iSpw4RRxDXY1uk9xeyUXOmg7UOuZvGekRc9cs8E61LWKdI08uv0kUyC4V6YxaETtrhniAtKD9t7FQ2qTFYi<br>'+
'Link â„–1 Filelist',
'links' : [
"http://zngbsq66uwem4qzyxpqb5rjo2xebnbwdku27nhmquryx6ljnbbedhiad.onion/thinline.lst.zip",
"http://zngbsq66uwem4qzyxpqb5rjo2xebnbwdku27nhmquryx6ljnbbedhiad.onion/thinline.rar"
]
},
{
'title' : 'sitoy.com',
'short' : 'sitoy.com 1.7Tb uncompressed data',
'full' : 'Sitoy Group <br>' +
'Founded in 1968, Sitoy Group is engaged in the design, research, development, manufacturing, sale, wholesaling, and re…Data the group says was taken
- engineering_data
- customer_data
- business_data
Screenshot of the leak post

Sources
Source
Indexed 2 months agoThis page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.
