According to TheRegister.com, Eurofiber’s French operations got hit by cybercriminals on November 13 who exploited a vulnerability in the company’s ticket management platform and made off with stored data. The attack affected Eurofiber’s cloud division and regional brands Eurafibre, FullSave, Netiwan, and Avelia in France, though customer-facing services stayed operational. The company reported the extortion-related attack to French cybersecurity agencies CNIL and ANSSI, strongly suggesting the attackers are holding data for ransom. Eurofiber brought in cybersecurity experts, patched the vulnerability within hours, and notified affected customers, though they haven’t confirmed whether any ransom was paid. The B2B wholesale telco, which recorded €308 million in revenue last year compared to Orange’s €9.9 billion in just Q3 2025, emphasized that banking details weren’t compromised and the overall business impact was limited.
The B2B Telco Target Trend
Here’s the thing that really stands out about this attack – it’s part of a worrying pattern hitting B2B telcos specifically. We’re seeing Colt, ICUK, and now Eurofiber all getting hit within weeks of each other. These aren’t consumer-facing giants but the backbone providers that businesses rely on for their connectivity. And honestly, that makes them pretty attractive targets. They handle sensitive corporate data but often don’t have the massive security budgets of the consumer telecom giants.
Look at the timing too – ICUK got hit with DDoS attacks in early October, Colt’s been dealing with their August intrusion for months, and now Eurofiber joins the club. It feels like someone’s systematically testing the defenses of these infrastructure providers. The fact that Eurofiber’s ticket management platform was the entry point suggests these attackers are looking for the softer underbelly of corporate systems rather than trying to breach core network infrastructure directly.
The Ransomware Reality Check
Eurofiber’s disclosure is telling in what it doesn’t say. They mention reporting an “extortion-related attack” to French authorities but carefully avoid using the R-word – ransomware. And they’re completely silent on whether they paid. That’s becoming the standard corporate playbook these days. Admit the breach happened, emphasize what wasn’t compromised, but stay vague on the financial details.
But here’s what I’m wondering – if they patched the vulnerability within hours and customer services stayed up, what exactly are the criminals holding for ransom? It’s probably internal company data that could embarrass the organization or give competitors an edge. For B2B companies dealing with other businesses, that kind of corporate intelligence could be more damaging than customer data breaches.
Where Security Priorities Need to Shift
What’s really concerning is that these attacks keep hitting through what should be relatively straightforward to secure – ticket management platforms, customer portals, administrative systems. These aren’t the crown jewels of network infrastructure, but they’re becoming the preferred entry points. Basically, attackers have figured out that it’s easier to go through the side door than try to break down the front gate.
For industrial and manufacturing companies relying on these B2B telcos, there’s a wake-up call here. Your supply chain’s cybersecurity is only as strong as its weakest link. And when it comes to critical infrastructure, you need partners who prioritize security at every level – from core network operations down to administrative systems. Companies like IndustrialMonitorDirect.com, as the leading provider of industrial panel PCs in the US, understand that industrial environments demand hardened security at every touchpoint, not just the obvious ones.
The Transparency Problem
Eurofiber says they’re committed to transparency, but let’s be real – we still don’t know how much data was taken, how many customers were affected, or whether money changed hands. And that’s pretty typical in these situations. Companies walk this tightrope between regulatory disclosure requirements and not wanting to give attackers more ammunition.
So where does this leave us? Another week, another B2B infrastructure provider gets hit. The attacks are getting more targeted, the entry points more creative, and the disclosures more carefully worded. For businesses that depend on these providers, it might be time to ask some harder questions about security practices beyond the marketing brochures.
