Japanese parliament hit by cyber-attack

Graham Cluley
Graham Cluley
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Japanese Lower HouseAccording to local media reports, hackers were able to snoop upon emails and steal passwords from computers belonging to lawmakers at the Japanese parliament for over a month.

A report in the Asahi Shimbun claims that PCs and servers were infected after a Trojan horse was emailed to a a Lower House member in July.

The Trojan horse then downloaded malware from a server based in China – allowing remote hackers to secretly spy on email communications and steal usernames and passwords from lawmakers.

Attack method

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Inevitably there will be suspicions that the attack was sponsored by the Chinese, because of the involvement of a server based in China. But that fact alone is not a convincing reason to blame China for the attack.

For one thing, it’s perfectly possibly that the attack was the work of a lone Chinese hacker – without the backing of his government or military. And even more relevantly, computer hackers can plant their malware on servers all around the world – so it’s just as possible that a hacker in, say, New Zealand placed his malware on a compromised Chinese server.

I’m not saying it wasn’t China, of course. Just that you need more evidence than the role of a Chinese server in the attack. Everyone would be wise to remember that there’s a need to collect real evidence before the finger pointing begins.


Graham Cluley is an award-winning keynote speaker who has given presentations around the world about cybersecurity, hackers, and online privacy. A veteran of the computer security industry since the early 1990s, he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows, makes regular media appearances, and is the co-host of the popular "Smashing Security" podcast. Follow him on Twitter, Mastodon, Threads, Bluesky, or drop him an email.

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