Why Personal Data Keeps Leaking Day After Day: 5ch Says ‘Stamps and Paper Are the Safest Bet’

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The story

Amid a wave of personal data leaks, a thread titled “Personal info keeps leaking every single day, what’s going on?” on 5ch’s “Nandemo Jikkyo G” board drew a flood of responses. With breaches reported even at the Digital Agency, posters floated theories ranging from “the government’s and companies’ IT response just can’t keep up with AI-powered cracking” to “maybe they’re just using this moment to quietly disclose breaches that happened a while ago.” Others rallied behind the blunt conclusion that “in the end, seals and paper are the safest option,” leaving opinion split over whether any countermeasures even make sense.

What people said

1AnonymousOct 8, 2026 20:33
What are the police even doing about this?
3AnonymousOct 8, 2026 20:35
Bet the police have leaked data too, they're just keeping quiet about it
4AnonymousOct 8, 2026 20:35
They realized leaking gets you off scot-free, so now they're just selling it
5AnonymousOct 8, 2026 20:35
"We were hiding it, but maybe we can slip it past everyone now"… yeah, that's probably it
6AnonymousOct 8, 2026 20:36
Isn't this way too sloppy?
Or are we dealing with genuinely elite hackers here?
8AnonymousOct 8, 2026 20:36
AI has made it so much easier
Once the Japanese language barrier disappears, well, this is the result
86AnonymousOct 8, 2026 21:43
Re: #8
Exactly this
The country's security was already full of holes, and this is what happens once AI gets weaponized on top of that
9AnonymousOct 8, 2026 20:38
They were just keeping quiet — disclosing scandals is the trend right now
You see the same pattern a lot with quality-fraud scandals too
14AnonymousOct 8, 2026 20:41
The IT capabilities of the government, police, and companies just can't keep up with AI-powered cracking
16AnonymousOct 8, 2026 20:41
"Might as well ride this big wave" — there are probably companies that sat on their leaks and figured now's as good a time as any to jump on the bandwagon and come clean
17AnonymousOct 8, 2026 20:41
There are so many leaks happening that even ones big enough to be headline news on their own are getting buried
19AnonymousOct 8, 2026 20:42
It's not just Japan. These guys are wrecking the whole world
s://i.imgur.com/vDPewTf.jpg
s://i.imgur.com/XGAZV6t.jpg
s://nova.5ch.io/test/read.cgi/livegalileo/1787100983/202
20AnonymousOct 8, 2026 20:42
If even the Digital Agency is leaking data, maybe this country's security just can't stop it regardless of AI
22AnonymousOct 8, 2026 20:43
Re: #20
What do you expect from that nursing home they call the Digital Agency?
23AnonymousOct 8, 2026 20:43
If there's no punishment for it, why would anyone bother fixing it?
24AnonymousOct 8, 2026 20:44
Mythos loosened its access restrictions, so its user base grew (Mythos being a tool/service referenced in the thread)
26AnonymousOct 8, 2026 20:45
Ah, I see
There's also a chance they're using this moment to disclose leaks that already happened a while back
27AnonymousOct 8, 2026 20:45
At the end of the day, seals and paper are the safest and fastest option
29AnonymousOct 8, 2026 20:45
They probably just want to build a narrative right now that AI is dangerous
34AnonymousOct 8, 2026 20:48
Re: #29
You're way too complacent, man (lit. "peace-addled" — naive from too much peace and comfort)
We're seriously under attack here
35AnonymousOct 8, 2026 20:49
Re: #34
So? What are you gonna do about it? lol
39AnonymousOct 8, 2026 20:53
Re: #35
I'm a hikikomori NEET (a shut-in who doesn't work or study), so I never registered my info anywhere — just watching from the sidelines 😁
44AnonymousOct 8, 2026 20:56
Re: #39
The only reason you get to be a NEET is because you're living in blissful, war-free complacency lol
38AnonymousOct 8, 2026 20:52
We already amended the Personal Information Protection Act, so why's everyone losing it over a few leaks?
41AnonymousOct 8, 2026 20:54
Re: #38
But countries with strong economies are doing well partly because they're skillfully monetizing their citizens' data
49AnonymousOct 8, 2026 20:59
As long as my Amazon purchase history doesn't leak, I'm fine
The day that gets out is the day I die
52AnonymousOct 8, 2026 21:00
Re: #48
Lol, you're just jealous and salty that I get to be a hikikomori NEET 😅
53AnonymousOct 8, 2026 21:01
Re: #52
You're way too complacent lol
We're seriously under attack here lmaooo
56AnonymousOct 8, 2026 21:04
Re: #53
You guys are the ones under attack, not me 😉
I've got nothing to leak — I'm a NEET who's never registered anything anywhere
85AnonymousOct 8, 2026 21:42
The government and the LDP still haven't done a thing about this
Of course it's a mess when you've got a minister who doesn't even know what a USB drive is
91AnonymousOct 8, 2026 21:52
Re: #85
They just rammed the "Personal Information Disclosure Act" through with a snap vote lol
92AnonymousOct 8, 2026 21:54
They probably only target capable, advanced countries — poor countries aren't even on the radar
94AnonymousOct 8, 2026 21:57
Re: #92
Didn't some hacker group put out a statement saying Japan's the perfect training ground for cyberattacks?

Background and Key Points

Japan’s Act on the Protection of Personal Information was amended in 2022 to require companies to report breaches above a certain scale to the Personal Information Protection Commission and notify affected individuals. That makes the thread’s theory — that companies are using this moment to disclose leaks they’d previously kept quiet — a plausible read of how the reporting obligation actually plays out. At the same time, security experts both in Japan and abroad have pointed to the growing sophistication of AI-driven attacks, so the sense that defenders are falling behind isn’t unfounded either. Some posters in the thread flatly pinned the leaks on a specific country, but since that claim lacked evidence, it was left out of this article. The punchline that “seals and paper are the safest option after all” is meant somewhat tongue-in-cheek, not as an argument against digitization itself. Since anonymous forums naturally mix in exaggeration and speculation, each company’s actual disclosures should be checked individually rather than taken at face value.

*This article is excerpted and summarized from the 5ch (Nandemo Jikkyo G) thread “Personal info keeps leaking every single day, what’s going on?.”

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