This is a summary of Computer
Virus Incident Report for the 3 rd Quarter (July – September)
2004.
1. Reported Numbers
Reported numbers for the 3 rd Quarter 2004 (July
to September) was 15,327 which still maintains
high movement from the 14,889 marked in the 2 nd Quarter 2004
and was about three times higher reported numbers compared with
the one marked in the same quarter in previous year.
The following graph shows movement for the reported
numbers marked for every quarter (or for 3-month interval).
* The %s shown in the graph are
the ratio for actual damage against entire reported numbers
for each quarter.
2. The Reported
Numbers for each Virus and Virus Detection Numbers
According from the movement of the
reported numbers *1 for the worst 6 viruses reported to IPA, more
than 1,400 cases in relation to W32/Netsky emerged in February
was reported to IPA continuum of 7 months from March which caused
to increase reported numbers entirely. Further, the movement for
detection numbers *2 , it remains taking over more than 85% against
entire reported numbers excluding 79% which marked in August after
April.
The state spreading viruses
moves at high rate. In case newer virus emerges, please re-confirm
your countermeasures against virus by applying modification
programs , utilizing anti-virus software
and be cautious for handling attachment files
as fundamental measures to avoid damage from infection.
*1 Reported Number: Upon aggregation
of virus counts, same kinds and its variants reported in a same
day are counted as 1 case even how many are found by a same filer
in a same day.
*2 Detection Number: Upon reporting,
virus detection counts (cumulative) by a filer.


The breakdown classified by filers is shown below;
reported numbers from general corporate users is taking over more
than 80% and that state still remains.

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