Amstel Securities
About the organisation
amstelsecurities.com zoominfo.com/c/amstel-securities-llp/353641962 Amstel Securities is a premier independent brokerage firm founded in 1989, connecting Asian and global markets with 35+ years of expertise in fixed income, equities, and derivatives. As a trusted agency and matched-principal broker, they specialize in Southeast Asian domestic currency bonds, high-yield credit, and G7 markets, serving institutional clients with unbiased execution and deep liquidity. Backed by strategic partnerships with BNY Mellon's Pershing for clearing and custody, they deliver secure, efficient solutions for wealth managers, family offices, and accredited investors worldwide
What the listing means
Amstel Securities appeared on the thegentlemen leak site on 12 May 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 134 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing Amstel Securities as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on amstelsecurities.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Financial Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/QW1zdGVsIFNlY3VyaXRpZXNAdGhlZ2VudGxlbWVu