(Nikkei BP Group)
(No.1 High-Tech News Site in Japanese)
| Damage from Unauthorized Computer Access Reported as High
October 30, 1998 (TOKYO) -- Reported cases of unauthorized computer system
access in Japan reached a record high in the July-September quarter,
according to the Japan Computer Emergency Response Team Coordination
published its summary report of damages caused by unauthorized computer
access during the three-month period. The reported incidents totaled
299 (at 3,266 sites), or 100 incidents more than the previous record
JPCERT/CC is an independent organization that responds to computer security
breaches in business firms via the Internet.
According to JCERT/CC, "port scan" was highly prevalent. Port scan attacks
involve trying to find security vulnerability in applications by accessing
The instigator uses a special automatic tool to scan port numbers of
the target server one by one to find security weaknesses. A port number
is an identifier to co-relate network data with an application. Attacked
sites amounted to 3,102 in the latest survey, while only about 100 sites
reported such attacks in the previous surveys. The number of such attacks
stayed at about the same level in October.
JCERT/CC issued a special report on Oct. 2. The survey of JCERT/CC revealed
that a total of 3,037 sites of companies and organizations were attacked
by the port scan method from late June to late September.
The port scan method can be used to attack any entities regardless of
size. Port scan incidents increased suddenly after June because an automatic
tool was made public on a Web page. That page also distributed a document
that described how to attack a Japanese domain (.jp).
Port scan tries to search for security vulnerability and does not necessarily
intrude. JCERT/CC said, "Safety is ensured by using the latest version
of server software and closing applications when not in use."
Related story: Unauthorized
Computer Access Nears Historical High in Japan
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