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tehjh's profile
Jann Horn
Jann Horn
Jann Horn
@tehjh

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Jann Horn

@tehjh

works at Google Project Zero. personal account.

Joined August 2011

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    1. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... world where commercial actors have figured out a cheap way to build delivery tunnels into everybody's home -- e.g. every flat is ...

      1 reply 0 retweets 0 likes
    2. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... connected to a tunnel through which goods and services can be delivered. The commercial actors who dug these tunnels made billions in...

      2 replies 0 retweets 0 likes
    3. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... profits from these tunnels, but crucially, in order to save money, built locks of random quality into the doors of these tunnels. Some..

      1 reply 0 retweets 0 likes
    4. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      .. are simple deadbolts, some are complicated-but-fragile, and most of them are relatively easy to change - although some aren't, again ...

      1 reply 0 retweets 1 like
    5. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... due to cost savings on the side of the entities that built these tunnels. An exploit is now a way to open some subset of these doors ...

      1 reply 0 retweets 0 likes
    6. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... and hence enter all buildings secured by one of such type of tunnel door. The tunnels were initially explored by teenagers that then ...

      1 reply 0 retweets 0 likes
    7. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... got recruited by either commercial or government entities. Most commerce also travels through these tunnels, which makes controlling...

      1 reply 0 retweets 0 likes
    8. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ...traffic in these tunnels hard. Various countries are now experimenting with "entering and bugging" target buildings, and also entering...

      1 reply 0 retweets 0 likes
    9. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      ... with the express intent to blow stuff up, and also entering in order to semi-permanently block tunnel doors.

      1 reply 0 retweets 0 likes
    10. halvarflake‏ @halvarflake 29 Jun 2017
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      Replying to @halvarflake

      This analogy is still broken in subtle ways, but at least less facile, broken, and unfit as the "weapons" analogy.

      2 replies 1 retweet 3 likes
      Jann Horn‏ @tehjh 29 Jun 2017
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      Replying to @halvarflake

      I think this analogy is missing the following, quite important, points: - locking up a packet is not a deterrent - scaling up is cheap

      8:08 AM - 29 Jun 2017
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        1. halvarflake‏ @halvarflake 29 Jun 2017
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          Replying to @tehjh

          Very good point.

          0 replies 0 retweets 0 likes
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