Title: Artemis DGO and DOC Special

Release Date: 2016-06-07

Document Date: 2009-01-01

Description: This extract from a 2009 GCHQ presentation includes a report on PRESTON, the agency’s programme for intercepting the communications of individuals or organisations who are subject to surveillance warrants. The report found that, in one six-month period, 97% of such communications had not been viewed by the authorities: see the Intercept article Facing Data Deluge, […]

Document: TOP SECRET STRAP 1

DGO and
DOC Special

TOP SECRET STRAP 1

This information is exempt from disclosure under the Freedom of Information Act 2000 and may be subject to exemption under other UK information legislation.

Refer disclosure requests to GCHQ on

TOP SECRET STRAP 1

--------------------------------------------\

Highlights

London G20 Event- In contrast to other recent events (e.g
Mumbai) most of the useful collection on this event came from
‘traditional’ sources - mainly Preston

• Preston Study- Nonetheless a very small proportion of
Preston traffic is normally viewed. This may be of concern as
this traffic is warranted.

• CPC, RPC- traffic collection increasing steadily and all IPTs
profiting

INA Transformation- INA collection,viewing and EPR
increasing

TOP SECRET STRAP 1

TOP SECRET STRAP 1

Preston study

TOP SECRET STRAP 1

This information is exempt from disclosure under the Freedom of Information Act 2000 and may be subject to exemption under other UK information legislation.

Refer disclosure requests to GCHQ on

TOP SECRET STRAP 1

PRESTON collection by month

PRESTON collection over period 1st November 08 - 30th April 09

1,500,000

■o

3

o

0

81,000,000

(A

E

a)

0)

n

E

3

500,000

□ Not Viewed

□ Viewed

□ End Product

Total

2008-11 2008-12 2009-01 2009-02

Month

2009-03

2009-04

Whilst Preston collection made up the bulk of the reporting on G20, it is clear from the above figures that only a small
proportion of the Preston Traffic is viewed. This is of concern as the collection is all warranted. However note caveat below:
Viewing figures from some repositories including Xkeyscore/Salamanca and Haustorium are not included in these statistics
as currently Artemis does not receive a feed from them. Full events feeds should be available by 2nd Q next year.

0

TOP SECRET STRAP 1

TOP SECRET STRAP 1

PRESTON collection by sigad

Vlewed/Not Viewed Not Viewed Viewed prrd Product
Collector Sigsd Govern a me Number of Items Percentage of items Number of Items Percentage of items Number of Items Percentage of Items
PRESTON ÜKC105 ZAMENSIS 239428 90.73% 24275 9.20% 178 0.07%
tiKCT.&S REMEDY 4453285 98.06% 37072 1.92% 326 0.02%
UKC1 08A GEORGELET 85 1 00.00%
UKC1CI8E PRESTON .4 1 1 00.00%
UK0112 GERONTIC 324229 88.70% 40895 11.19% 429 0.12%
UKC112A NIGH 50 1 00.00%
UKC112B NORWALK 48 1 00.00%
UKC11 20 PECTASE 76 1 00.00%
UKC11 2D ~ 103 1 00.00%
UKC122 43 1 00.00%
UKC123A LABORO 13 1 00.00%
UKC126 13 1 00.00%
UKC311 NTAC 1 1 00.00%
UKC311A CATSUP 7417 92.46% 596 7.43% 9 0.11%
UK0311B CONDONE 2984 80.47% 682 18.39% 42 1.13%
Total 5027343 97.00% 153520 2.96% 1917 0.04%
i i —

• Only 3% of PRESTON collection over the last 6 months was viewed. - As noted in previous slide,viewing figures from
events repositories are not available

• Collection info is only available for ZAMENSIS, REMEDY, GERONTIC, CATSUP and CONDONE.The other sources
relate to billing data and as noted Artemis does not yet have a feed from events data bases.

• It is interesting to note that some of these accesses (UKC123A-Laboro and UKC126-Larkspur) were lost between a
year and 2 years ago but historical data in repositories is clearly still proving useful.

mu TOP'SECRET STRAP ' 1

e-Highlighter

Click to send permalink to address bar, or right-click to copy permalink.

Un-highlight all Un-highlight selectionu Highlight selectionh