Dark Web News Analysis
Cybersecurity intelligence from late February 2026 has identified a high-priority “Full Infrastructure” listing involving the e-procurement infrastructure utilized by IBEX-35 constituents. This incident represents one of the most significant supply chain threats of the year, targeting the centralized procurement backbone of Spain’s leading blue-chip companies.
The threat actor claims to have bypassed primary defensive layers to exfiltrate a “master key” dataset. The listing is structured into three distinct tiers of compromise:
Tier 1: Identity & Session Hijacking (The “Eternal” Session)
The most immediate threat stems from the compromise of SSO Admin API credentials.
- Zero-MFA Bypass: The seller alleges these credentials lack password protection, MFA, and IP-locking.
- 46,000+ Accounts: This grants unauthorized access to over 46,000 accounts with “eternal sessions” that do not expire.
- Webhook Manipulation: Attackers can manipulate account logic and event webhooks to establish long-term persistence and monitor real-time procurement transactions.
Tier 2: Lateral Movement & Credential Dump
A secondary layer of exfiltrated data facilitates deep penetration into internal networks:
- AD & B2B Credentials: Internal Active Directory (AD) domain user credentials and B2B API keys.
- Database Access: Oracle DB connection strings for Development (DEV), Integration (INT), and Production (PROD) environments.
- RSA Private Key: The exposure of an RSA private key potentially enables the decryption of sensitive communications or the forging of digital signatures.
Tier 3: Supply Chain & Cloud Infrastructure
The final tier targets the development and deployment lifecycle:
- CI/CD & Source Code: Access to Bitbucket repositories and compromised CI/CD pipelines allows for the injection of malicious code into legitimate procurement software.
- JIRA & Azure AD: Compromised JIRA Cloud sessions and Azure AD Service Principal Name (SPN) tokens grant broad permissions within the cloud environment, potentially allowing for the creation of unauthorized resources or further data exfiltration.
Key Cybersecurity Insights
The breach of a centralized e-procurement hub represents a “Tier 0” threat due to its role as a trust anchor for the Spanish financial sector:
- Industrialized Supply Chain Hijacking: This is the primary risk. By poisoning the software used for billion-euro procurement deals, attackers can gain a permanent foothold in every company connected to the platform.
- “Living off the Cloud” Persistence: The use of Azure AD SPN tokens and eternal cookies allows attackers to maintain access without triggering standard “new login” alerts. They appear as legitimate service principals, making detection via traditional SOC monitoring extremely difficult.
- Financial & B2B Sabotage: With Oracle DB PROD strings, malicious actors can alter bid prices, redirect payments, or exfiltrate confidential trade secrets and supplier contracts, leading to massive financial losses and litigation.
Mitigation Strategies
To protect your organizational infrastructure and ensure digital resilience following this exposure, the following strategies are urgently recommended:
- Immediate Force-Reset & API Invalidation: Enforce an immediate password reset for all accounts associated with the platform, prioritizing administrators. CRITICAL: Revoke every API key, Azure AD SPN token, and Bitbucket access token currently in use.
- Enforce Phishing-Resistant MFA & IP Locking: Do not rely on SMS or app-based codes. Mandate FIDO2 hardware tokens for all admin access and implement strict IP-address whitelisting for all API and DB connection attempts.
- CI/CD Pipeline Forensic Audit: Conduct a deep forensic analysis of your Bitbucket and CI/CD logs. Look for any unauthorized commits, changes to build scripts, or anomalous “deployment” activity that occurred between February 1st and February 27th, 2026.
- Database Connection String Rotation: Rotate all Oracle DB connection strings immediately. Change the master passwords for DEV, INT, and PROD environments and audit all database logs for unauthorized queries or bulk data exports.
Secure Your Future with Brinztech — Global Cybersecurity Solutions
From IBEX-35 enterprises and financial agencies to global supply chain networks, Brinztech provides the strategic oversight necessary to defend against evolving digital threats. We offer expert consultancy to audit your current IT policies and GRC frameworks, identifying critical vulnerabilities in your SSO logic, CI/CD pipelines, and cloud SPN management before they can be exploited. Whether you are protecting a national procurement hub or a private corporate network, we ensure your security posture translates into lasting technical resilience—keeping your digital footprint secure, your supply chain private, and your future protected.
Questions or Feedback? For expert advice, use our ‘Ask an Analyst’ feature. Brinztech does not warrant the validity of external claims. For general inquiries or to report this post, please email us: contact@brinztech.com
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