It reaches the point where it consists as a business, e.g., card information is bought and sold with the underground sight, the illegitimate utilization incident due to card information leakage is successive.There are two causes of internal opposing and external attack in card information leakage.This time you explain concerning the primary factor and the preventive measure where information leakage occurs.
The card information leakage with internal crime
| Recently, as for the reason where the information leakage with internal crime occurs frequently there is many a thing which can copy the digital data simply in large quantities |
It announces that 2009 July, card information flowed out from foreign owned life insurance company arikojiyapan.The fact that it has become the object is the card information which from 2008 February 26th is in to April 10th and inside the host computer.
According to arikojiyapan, the contractor who has the possibility information flowing out being 10,000 8,184 people, some person extracted the file where card information enters in the program, brought up to imitation.As for name and address and telephone number it was not included by the file, card number and the expiration date flowed out.
With arikojiyapan, it is designed in such a way that it can access customer information the system development enterprise which has been entrusted, it could specify the fact that it is access of the unnatural plural times from the computer of the enterprise from past record.can be identified as soon as the person who extracted the data to narrow the、policy is to criminal charges。
card information was leaked on the net is unauthorized shop you can buy just the card number and expiration date、2009year9month10at the date of4,292has become of。in the number of unauthorized card use has become the nation’s largest。
2004year2month、Yahoo! BBregistrant about450worth of personal information leakage incident million people。dispatch employees yuan、database for access from outsideIDaccess to personal information using a password and。for accessIDfor the group rather than individuals isIDbecause it was、that was not deleted even if employees leave is due to dispatch。
measures to prevent information leakage by the card inside job
the workaround is to check the history of access to the server containing personal information、periodically check if there is any misbehavior。reduce as much as possible to make it easier to identify a human can be accessed、psychological deterrent to ensure that work。if you get retiree groupIDreview all your passwords, including。there is no choice but to ensure this。
in extreme cases, such as recording is set up a camera in-house。but、there is a risk of employees down to moral。education to the pre-、ask the firm understand the purpose。education course、part-time and part-time job also includes not only regular employees。
if you want to commission the system development、available test data is not comparable to data production rather than production data、verification is firmly on the consignment must be done without leave to subcontractors。it will be done in-house parts have been thrown round the system development companies until now、it takes considerable effort and budget。
card information leakage due to external attack
| recent years、information leakage due to external attack reason has been the emergence of multiple copycat criminal attack by a site that describes how a large |
2009year8month、mail order site of entertainment production amuse「a smart」announced today that it has leaked from the card information。
it was leaked2005year4month4day～2009year7month20the sun「a smart」you purchased the product is11ten thousand6,911people in minutes、of this3ten thousand4,988ken was included credit card number and expiration date。
the good news is that、monetary damages due to unauthorized use does not seem to occur。amuse is entrusted to the company in a management server teipazu。from server to server’s chinese teipazuSQLthere was an injection attack。
「SQL(Structured Query Language)」and the language of the database to handle、「injection」the injection means。bought on the website or user、to be able to answer the questionnaire、you need to run on the database server。the web site、will display while interacting with the database、to interact with the databaseSQLi am using。
SQLinjection、URLunexpected text input field and websiteSQLsend a statement that、steal information from a database、is that of an attack or tampering。2005year5prices that occurred in may.comweb site of the tampering incident、thisSQLis due to injection。
SQLto do the injectionSQLexpertise was needed grammatical。however、web site with tools and vulnerability attackURLbeen published on the net is、attack has increased in that attack only to imitate even if there is no expertise enables。
measures to prevent information leakage by external attack card
the most important thing to understand about security, such as top management、internal audit、first is to ensure the necessary budget to external audit。
you must then make a secure website。to understand whether there is any attack、SQLbe designed not to make the cause of the statement it is important to be injected。when a site that displayed on the website as it is an error message from the database々the apparent、since you are giving a hint to the other party、change the display so that it does not。IPA（information-technology promotion agency,）to how to secure your web site it can be found is、please refer to the means。
periodically check the server access log of whether or not he has received the unauthorized access their site、you find traces of the attack。IPAfrom SQLinjection detection tool the、co., ltdLACfrom freeWebsite diagnostic log has been provided by。
unauthorized entry tool that automatically notifies the（IDS）to introduce。conduct periodic inspections by the attack from the outside。introduction of the tool is also useful to automatically detect tampering of programs and other files。
information leakage is the first report of an inquiry from the credit card company card
| the first report card of information leakage、be discovered in the inquiry from the credit card company |
alico japan、the first report card of any information leakage is amuse、was the inquiry from the credit card company。
in the credit card company has to check if there is any unauthorized use system。there is a shop or shopping in tokyo and osaka shop the same time、and how it is used to detect the card different from the customer’s shopping patterns、verifies whether the fact that there was shopping to the customer by telephone。
found to unauthorized use of multiple customers、if you have been shopping at the same shop before the unauthorized use、possibility that the card information leaked from the shop will be higher。first report will contain and there is a possibility of information leakage to the appropriate card to shop there。
payment card is highly convenient payment methods for customers、has been utilized in many mail order site。most sites can be settled only by card number and expiration date、you can easily exploit once you get the card information even。
the burden of damage caused by unauthorized use net shop
| unauthorized use charge-back will burden merchants |
although many internet shops do not realize until the unauthorized use occurs、unauthorized use, such as charge-back by the spoofing（remand of the claim price）we will bear the merchants。
it has appeared that there3Dsecure service。in addition to the traditional card information、what the user to enter a password that had been pre-registered with the company card。3Dnet shop to do the secure credit card payment service、eliminates the burden of responsibility and credit card companies will charge back。
users do not remember the password that you registered just unexpectedly。no password to remember in the middle of a credit card payment go up、you drive people away from shopping。paste a link to the site each member of the company card、will find the password necessary to devise。
credit association of japan according to the statistics of、2009year4month～6amount of unauthorized use of the month24.1is one hundred million yen。although the decline has been in the credit card companies such as improved detection systems、is still a significant amount。card so as not to leak information、please take measures firm。
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