ytch

18 ms·

1. 181.▲
   by ytch 6y ago

   > How can one app alter the behavior of another? In Defcon 2, author finds a log with intent: {act=android.intent.action.VIEW Android will handle The URI with default app. The malware sends HTTP url, so it will be opened by default brows
2. 182.▲
   by ytch 6y ago

   > Send an email to every customer (domain, so pick a single customer at every domain) Greylist is allow/block based on sender IP, not receiving metadata, so I guess pre-send mail from the IP might help, but yes, other rules might sl
3. 183.▲
   by ytch 6y ago

   Yes, also many perl modules: https://metacpan.org/author/AUDREYT
4. 184.▲
   by ytch 6y ago

   How about scan QR code on login screen by authenticated APP on phone. Many companies in China use this way. does there have any possible exploit/disadvantage of this method?
5. 185.▲
   by ytch 6y ago

   Is it possible to solve by some kinds of warming up? AFAIK greylist is IP-based. We can send email at regular time so all the sender IP can keep in list. But email does has many uncertainty like spam detection and others to slow the process
6. 186.▲
   by ytch 6y ago

   Thanks for your explanation, I didn't take this into account
7. 187.▲
   by ytch 6y ago

   Theoretically we can find out why M1 is fast by instructions. But there is no instruction manual, we can only reverse engineering it
8. 188.▲
   by ytch 6y ago

   Apple might use these instruction in CoreML/Accelerate Framework and not integrated to LLVM as the author said: > This is an undocumented arm64 ISA extension present on the Apple M1. These instructions have been reversed from Accele
9. 189.▲
   Undocumented arm64 ISA extension present on the Apple M1(gist.github.com)

   260 points by ytch 6y ago|198 comments
10. 190.▲
    by ytch 6y ago

    Me too. IIRC, there is no free IDE on windows at that time. I used Turbo C and Visual studio 6/.NET at school. Then I find Dev-C++, finally I can code anywhere.
11. 191.▲
    Huawei releases HarmonyOS 2.0 beta for select phones(gsmarena.com)

    2 points by ytch 6y ago|0 comments
12. 192.▲
    by ytch 6y ago

    Rosetta 2 doesn't support x86 hypervisor: https://developer.apple.com/documentation/apple_silicon/abou... > What Can't Be Translated?: Virtual Machine apps that virtualize x86_64 computer platforms
13. 193.▲
    by ytch 6y ago

    It works if login with facebook or Apple ID, so GCP itself is fine, but I guess admin cannot login to management
14. 194.▲
    by ytch 6y ago

    opening it with Incognito mode works too
15. 195.▲
    Japan boosts AI funding to help residents find love(japantimes.co.jp)

    1 points by ytch 6y ago|0 comments
16. 196.▲
    by ytch 6y ago

    I am thinking the same problem. TCP checksum includes data field. Is it means AT&T flip bits and re-calculate checksum?
17. 197.▲
    by ytch 6y ago

    How a device (Android, iPhone, Mac and others) do initialize at first boot/system recovery if this CA is not installed?
18. 198.▲
    by ytch 6y ago

    Thanks, I haven't noticed the latency/power difference of GDDR memory.
19. 199.▲
    by ytch 6y ago

    I'm curious that the A12Z DTK Mac mini shows moderate Geekbench score under Rosetta 2. Is this means some improvements are not M1-only, but already in Ax processor?
20. 200.▲
    by ytch 6y ago

    This reminds me that Xbox series X/PS5 use Unified GDDR for higher memory bandwidth, I'm curious if such design can help x86 catch up M1?
21. 201.▲
    by ytch 6y ago

    From an software engineer's point of view, it is always exciting when new technology on market. For example, I'm excited for Ruby on Rails on production when I was using PHP/Perl at that time. Also when I know how Kubenetes&#
22. 202.▲
    by ytch 6y ago

    Also Adobe release Photoshop beta for Mac/Windows ARM. It is ironic that windows ARM was released long before, but Adobe support it until Mac ARM on Market.
23. 203.▲
    by ytch 6y ago

    from density (MT/mm2): TSMC 5nm: 173.1 Samsung 5nm: 126.5 Intel 10nm: 100.8 Intel 7nm: 202 (estimated [1]) Therefore TSMC is still the best in density right now. [1] https://en.wikichip.org/wiki/7_nm_lithography_pr
24. 204.▲
    by ytch 6y ago

    Apple has built many second-source partners for cost-reduction for a long time. But most of their CPUs are made by TSMC right now. I'm wondering will Apple find another semiconductor factory partner (they tried to build A9 by both Sams
25. 205.▲
    by ytch 6y ago

    Docker on Mac needs hypervisor, but Apple says Rosetta 2 doesn't support x86 hypervisor [1]. Therefore it is not possible right now. [1] https://developer.apple.com/documentation/apple_silicon/abou...
26. 206.▲
    by ytch 6y ago

    > Apps installed on a user's Mac are expected to run indefinitely, But if a malware is signed and installed to a computer, revoke it can prevent further running.
27. 207.▲
    by ytch 6y ago

    There is still PCIe bus and Thunderbolt, technically it is still possible to connect NVIDIA/AMD GPU to Apple Silicon, but we need enough bus (x8 or x16) and drivers.
28. 208.▲
    by ytch 6y ago

    Geekbench tests daily tasks like AES, PDF, HTML5. If the score is higher, then daily tasks are faster too. IMHO it is reliable across different Arch/CPU/OS.
29. 209.▲
    by ytch 6y ago

    The text under score shows "macOS AArch64", I guess it runs on ARM natively?
30. 210.▲
    Shanghai stock exchange suspends Ant Group's A-share IPO(de.reuters.com)

    238 points by ytch 6y ago|113 comments