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- TransUnion Data Breach Rocks Millions After Salesforce Vendor Compromise
TransUnion Data Breach Rocks Millions After Salesforce Vendor Compromise
Over 4 million U.S. consumers exposed in a third-party breach via Salesforce—credit giant insists its own systems remain untouched as investigations begin.
Devona Green Jordan
August 28, 2025
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Interesting Tech Fact:
One of the earliest and least-known large-scale data breaches occurred back in 1984, when a teenager in Milwaukee infiltrated a Los Alamos National Laboratory computer system that stored nuclear weapons research data. Using nothing more than a home computer and a dial-up modem, he exploited weak default passwords to gain access, ultimately exposing the vulnerability of even the most sensitive government networks at a time when cybersecurity as a discipline barely existed. This forgotten incident not only predates today’s headline-grabbing corporate breaches but also serves as a reminder that the foundations of modern data protection were shaped by early lapses in digital trust—long before the internet became a household utility.
In the fast-moving world of cybercrime, no corporation is immune—not even credit giants entrusted with the financial identities of millions. This week, TransUnion confirmed a data breach affecting more than four million U.S. consumers, stemming not from its own systems but from a third-party vendor that operated through Salesforce. The incident has ignited a wave of concern about the fragility of supply chains, the growing sophistication of adversaries, and the undeniable reality that even the most heavily regulated industries can be blindsided by weak links in their vendor ecosystem. While TransUnion has rushed to assure the public that its direct infrastructure was not infiltrated, the reputational damage and exposure of sensitive consumer information underscore a sobering truth: the battleground for cybersecurity has shifted well beyond the perimeter of any one company’s network→Cybernews.