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TecTiles security?

Discussion in 'Android Devices' started by StuDaddy, Jul 3, 2012.

  1. StuDaddy

    StuDaddy Newbie
    Thread Starter

    Hi. I guess I am a newbie here.

    My VZW S3 should be here next week, and there's talk of 10,000,000 S3s being sold I am really interested in getting some TecTiles, but I am also concerned.

    Do they create a security issue? Can someone else take control of my phone or get my information through their TecTiles?

    Like if I am on a crowded bus, can someone have a TecTile in their bag that programs "send out accout information" or "send contact list" that will control my phone? Can they turn on my "hotspot" (without buying my dinner first!!)?


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  2. ylexot

    ylexot Android Expert

    First, I wouldn't get the TecTiles. They cost ~3x what generic NFC tags cost.

    I'm sure there are some nefarious things that could be done, but keep in mind that the range for NFC is just a couple inches and it is only on when your screen is on (unless you hack it to work with the screen off). If you're still concerned, I'm sure you could set up a NFC on/off toggle widget.
    StuDaddy likes this.
  3. akita

    akita Android Enthusiast

    So which type of nfc tags are compatible with the S3?
    tagstand - NFC Products Catalog

    Will you need to download a specific app to program the NFC(if you don't use the Tectiles and Tectile App)?
  4. ylexot

    ylexot Android Expert

    stbear, StuDaddy, akita and 1 other person like this.
  5. akita

    akita Android Enthusiast

    StuDaddy likes this.
  6. ylexot

    ylexot Android Expert

    You should be able to use the TecTile app, but since I won't have my SGS3 for another week, I can't say with 100% certainty. Otherwise, there is a list of apps in the link.
    StuDaddy and akita like this.
  7. akita

    akita Android Enthusiast

    Cool. Thanks
  8. XplosiV

    XplosiV Master X is Watching You

    Yes you do need an app of some kind to program, and read/write NFC tags or tec tiles.

    No there isnt really a security issue as each tag has a unique ID and if someone comes along and tries to 'Tag' your phone, your phone will simply give you a pop up telling you a new tag has been detected, and even then, the tag has to come to within an inch or so of your phone.

    Programming tags as far as im aware, isnt as comprehensive as to be able to coax out info from the phone like contacts and such, but can be used to store YOUR contact info to be given out to others, on a tag.

    StuDaddy likes this.
  9. StuDaddy

    StuDaddy Newbie
    Thread Starter

    I feel more confident now that "they" wont be able to get me, but just because I'm paranoid doesn't mean they aren't out there.
  10. akita

    akita Android Enthusiast

    I corresponded with Tagstand regarding what NFC tags to get. Here is what they said:
    I went to Samsung's site to get more info on the specs of their TecTiles and heres what i found:
    Specs - Cell Phone Accessories ETC-TT1G6N | Samsung Cell Phones
    Some key specs I noticed:
    MIFARE 1kB NFC memory chip, 100,000 cycle Write Endurance, 10 yr Data Retention, 13.56 MHz Operating Frequency

    So with that said, I think the Mifare Classics should be ok. That's 752 bytes vs 144 bytes. Only thing is the Mifare Classics can't be made Read-Only.
  11. XplosiV

    XplosiV Master X is Watching You

    While this is true, it should not be forgotten that not all apps have to write data to a tag.

    Some apps, just read the unique tag ID and let you save the commands you want to the phone. Thus making the tag data size redundant.

    Keep in mind that 'typically' four commands will take up an actual data size of 40-43 bytes, and in some cases, some people only use 2-3 commands at once.
    1k tags will hold a lot more commands, but do you really need them to for your own personal uses, is the question.

    NTAG203 tags, will be more than suitable for the needs of Joe Bloggs, if good old Joe insists on actually writing info to the tags instead of using an app that just reads the tag ID and activates a profile.
  12. akita

    akita Android Enthusiast

    cool thanks for the info.I ended up buying a mix between the mifare classic and type 2 tags. Real cheap and no biggie if it doesn't work out.
  13. rkv3434

    rkv3434 Newbie

    I ordered mine from TagsforDroid yesterday. Hopefully they are here a couple of days after my phone arrives (the 9th). The only reason I ordered from them was because they have the android logo on them and also send a free key chain nfc.
  14. akita

    akita Android Enthusiast

    Are you going to put a tag on your keychain?
  15. rkv3434

    rkv3434 Newbie

    Nope, don't even carry a key chain but I think the one they send already has the tag on the key chain. Maybe I'll find some use for it.
  16. matttye

    matttye Android Expert

    I prefer the tag id method as its more secure (stops people rewriting tags), I just don't like the apps that use that method ATM :( so I'm still using the NFC task launcher write method.
  17. Mar

    Mar Well-Known Member

    You can always turn NFC off from settings as well if you are that worried

Samsung Galaxy S3 Forum

The Samsung Galaxy S3 release date was May 2012. Features and Specs include a 4.8" inch screen, 8MP camera, 1GB RAM, Exynos 4412 Quad processor, and 2100mAh battery.

May 2012
Release Date

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