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South Korea’s financial industry hit by fresh wave of cyberattacks

TechCrunch reports new cyberattacks on South Korean financial firms Daishin Securities, Mirae Asset Global Investments and Bithumb, about a month after a wave that researchers linked to an AI penetration-testing tool. Causes of the latest breaches are still under investigation.

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Why it matters

The same thing, for different readers.

What it means for you

TechCrunch reports that customers of South Korean brokerages and a crypto exchange face new breaches, with Daishin saying 38,490 customers had names and contact details exposed.

For lawmakers

South Korea's financial regulator has called for stronger cybersecurity measures and plans security checks on dozens of private-sector IT systems, TechCrunch reports.

For researchers

TechCrunch says researchers tied the September attacks to a suspected China-based hacker using an AI tool called Artex; the cause of the new breaches is not established.

In their own words

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From the source’s own text.

“Security researchers linked the September wave of attacks on South Korea to a suspected China-based hacker who relied on an AI penetration testing tool called Artex, though officials are still investigating the root cause of the latest breaches.”
TechCrunchTechCrunch's own account of what researchers linked the earlier attacks to.
Found word for word in the source
“Daishin reported a cyberattack that exposed the personal information of 38,490 customers, including names, email addresses, and mobile phone numbers.”
TechCrunchTechCrunch, citing local news, on the Daishin Securities breach.
Found word for word in the source

The record

Questions
How is AI used in attacks, defence and war?
People
Kate Park (Wrote it, Reporter, Asia)
What we read
We read the whole source.
Found by
The Radar, run of October 29, 2026, via techcrunch-ai (tier 2: a major outlet’s own reporting)
Cite this
TechCrunch, “South Korea’s financial industry hit by fresh wave of cyberattacks”, October 28, 2026. Entry in the Ctrl AI Base, https://ctrlai.com/base/techcrunch-2026-10-28-south-korea-financial-cyberattacks
Our notesTechCrunch itself says no connection between the Asian incidents is established and the latest causes are unknown; the AI link is only for the September wave. The story id is a loose fit (it covers the AI-hacking thread, not the PHP flaws specifically); the editor may prefer a separate story.