dev0n
Member
I figured that after reading threads like this one that this issue was at least pretty well covered, but a cursory automated crawl of cannabis-related photos on the web last week yielded (no pun intended) a whole mess of GPS data embedded in the EXIF tags of posted grow pictures. WHAT THE HELL?
PEOPLE: A lot of the new smart phones geotag your camera pics by default. At least turn that off, and kill your GPS completely if you can. To illustrate what I'm talking about, here's a pic somebody may have taken of their home grow with their spiffy new Motorola Cliq:
This gets posted to the web in raw form cuz the user is an idiot. Now Johnny DEA gets a few seconds free from harassing terminally ill patients in California and decides he wants to find out where this photo was taken. He downloads it and looks at its EXIF tags:
See the shit bolded there toward the end? YEAH! Johnny DEA now knows that this photo was snapped at 38 53' 55.13" N, 77 2' 15.69" W -- and his jurisdiction knows no limits!
A lot of people are getting busted for being careless with just this type of shit because they quite frankly didn't know this was the default setting. Don't be one of those people. There are a gazillion tools on the web for every OS to strip these tags, people, google "strip EXIF tags" and please use one.
PEOPLE: A lot of the new smart phones geotag your camera pics by default. At least turn that off, and kill your GPS completely if you can. To illustrate what I'm talking about, here's a pic somebody may have taken of their home grow with their spiffy new Motorola Cliq:
luser@pc ~/Pictures/Bud $ ls -l
-rw-r--r-- 1 luser luser 954K 2010-06-13 20:26 I Grow Illegal Weed.jpg
-rw-r--r-- 1 luser luser 954K 2010-06-13 20:26 I Grow Illegal Weed.jpg
This gets posted to the web in raw form cuz the user is an idiot. Now Johnny DEA gets a few seconds free from harassing terminally ill patients in California and decides he wants to find out where this photo was taken. He downloads it and looks at its EXIF tags:
deaboy@raich ~/Bustees $ exiftool I\ Grow\ Illegal\ Weed.jpg
ExifTool Version Number : 7.82
File Name : I Grow Illegal Weed.jpg
Directory : .
File Size : 954 kB
File Modification Date/Time : 2010:06:13 20:26:03-05:00
File Type : JPEG
MIME Type : image/jpeg
Exif Byte Order : Big-endian (Motorola, MM)
Make : Motorola
Camera Model Name : MB200
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Modify Date : 2010:06:13 20:26:03
Y Cb Cr Positioning : Centered
Exif Version : 0220
Date/Time Original : 2010:06:13 20:26:03
Create Date : 2010:06:13 20:26:03
Components Configuration : Y, Cb, Cr, -
Flashpix Version : 0100
Color Space : sRGB
Exif Image Width : 2592
Exif Image Height : 1944
Interoperability Index : R98 - DCF basic file (sRGB)
Interoperability Version : 0100
GPS Version ID : 2.2.0.0
GPS Latitude Ref : North
GPS Longitude Ref : West
Compression : JPEG (old-style)
Thumbnail Offset : 578
Thumbnail Length : 6724
Image Width : 2592
Image Height : 1944
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
GPS Latitude : 38 deg 53' 55.13" N
GPS Longitude : 77 deg 2' 15.69" W
GPS Position : 38 deg 53' 55.13" N, 77 deg 2' 15.69" W
Image Size : 2592x1944
Thumbnail Image : (Binary data 6724 bytes, use -b option to extract)
ExifTool Version Number : 7.82
File Name : I Grow Illegal Weed.jpg
Directory : .
File Size : 954 kB
File Modification Date/Time : 2010:06:13 20:26:03-05:00
File Type : JPEG
MIME Type : image/jpeg
Exif Byte Order : Big-endian (Motorola, MM)
Make : Motorola
Camera Model Name : MB200
X Resolution : 72
Y Resolution : 72
Resolution Unit : inches
Modify Date : 2010:06:13 20:26:03
Y Cb Cr Positioning : Centered
Exif Version : 0220
Date/Time Original : 2010:06:13 20:26:03
Create Date : 2010:06:13 20:26:03
Components Configuration : Y, Cb, Cr, -
Flashpix Version : 0100
Color Space : sRGB
Exif Image Width : 2592
Exif Image Height : 1944
Interoperability Index : R98 - DCF basic file (sRGB)
Interoperability Version : 0100
GPS Version ID : 2.2.0.0
GPS Latitude Ref : North
GPS Longitude Ref : West
Compression : JPEG (old-style)
Thumbnail Offset : 578
Thumbnail Length : 6724
Image Width : 2592
Image Height : 1944
Encoding Process : Baseline DCT, Huffman coding
Bits Per Sample : 8
Color Components : 3
Y Cb Cr Sub Sampling : YCbCr4:2:0 (2 2)
GPS Latitude : 38 deg 53' 55.13" N
GPS Longitude : 77 deg 2' 15.69" W
GPS Position : 38 deg 53' 55.13" N, 77 deg 2' 15.69" W
Image Size : 2592x1944
Thumbnail Image : (Binary data 6724 bytes, use -b option to extract)
See the shit bolded there toward the end? YEAH! Johnny DEA now knows that this photo was snapped at 38 53' 55.13" N, 77 2' 15.69" W -- and his jurisdiction knows no limits!
A lot of people are getting busted for being careless with just this type of shit because they quite frankly didn't know this was the default setting. Don't be one of those people. There are a gazillion tools on the web for every OS to strip these tags, people, google "strip EXIF tags" and please use one.