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Laws on Unauthorized Access and Cyber Crime

頻出~36 min5 terms16 past questions

Goals of this unit

  • Explain the basic principles set out in the Cybersecurity Basic Act and the responsibilities it places on the national government, local governments and others.
  • Explain which acts the Unauthorized Access Prohibition Act forbids and what conditions a computer must meet to be covered by it.
  • Explain the rules for those who send advertising email, and what the Penal Code offense that punishes handling viruses and other malicious programs covers.
Terms at a glance (5)
TermIn one lineNatureMain target
サイバーセキュリティ基本法Sets the basic principles for defending the country and the responsibilities of each partyA basic act that sets policy and structureEfforts by the state, local governments, businesses and others
不正アクセス禁止法Forbids misusing someone else's ID and password or breaking in through a weaknessA law that sets prohibited acts and penaltiesBreaking into computers with access control, and helping others do so
特定電子メール法Regulates how advertising and promotional email is sentA law that sets rules for sendersEmail sent to advertise or promote
不正指令電磁的記録に関する罪Punishes handling viruses and other malicious programsAn offense under the Penal CodeMalicious programs, from creating them to keeping them
ウイルス作成罪Common name for the Crime Concerning Unauthorized Commands Electromagnetic RecordsAn offense under the Penal Code (common name)Malicious programs, from creating them to keeping them

Terms

サイバーセキュリティ基本法Cybersecurity Basic Act

Open in glossary サイバーセキュリティ基本法

The Cybersecurity Basic Act (サイバーセキュリティ基本法) is a law that lays down the basic principles (基本理念) for defending the whole country against cyberattacks and similar threats, and the responsibilities (責務) of the national government, local governments and others.

Enacted in 2014, it sets the direction on which individual measures are built. Under this act, a body that pulls together and drives the national strategy was set up within the Cabinet. Besides the national and local governments, it also asks operators of critical infrastructure and the public to play their part from their own positions.

AnalogyThink of crime prevention for a whole apartment building: it resembles the house rules that spell out what the residents' association, each household and visiting contractors are each responsible for.

How to remember"Basic Act" in a law's name marks a type of law that sets the basic policy for a field and guides the specific laws and measures within it (the Basic Environment Act is another example).

Exam points

  • ExamThe Cybersecurity Basic Act (サイバーセキュリティ基本法) sets out the basic principles for advancing defensive measures nationwide and the roles of the national and local governments, and it also created a government body to lead the effort.
  • ExamAlongside the duties of the national and local governments, this act asks citizens to make efforts as well. The state's basic measures go beyond protecting the government itself and extend to laying the groundwork for measures across society.

3 past questions on this term サイバーセキュリティ基本法

不正アクセス禁止法Unauthorized Access Prohibition Act

Open in glossary 不正アクセス禁止法

The Unauthorized Access Prohibition Act (不正アクセス禁止法) is a law that forbids entering, over a network and without permission, a computer protected by an access control function (アクセス制御機能), as well as acts that help someone do so.

Prohibited actDescription
Unauthorized accessEntering and using someone else's ID and password (identification code) without permission, or exploiting a weakness to get around restrictions
Facilitating itPassing someone else's ID and password to another person without the owner's consent
Wrongful obtaining or storingObtaining or noting down someone else's ID and password for use in unauthorized access
Wrongful requests for inputPosing as a genuine screen to get people to enter their ID and password

An access control function (アクセス制御機能) is a mechanism by which the person managing a computer, the access administrator (アクセス管理者), checks users with an identification code (識別符号) such as an ID and password and lets only permitted people in. Besides entering someone else's identification code without permission, getting around the restrictions by exploiting a weakness in the OS or software, known as a security hole (セキュリティホール), also counts as unauthorized access. A 2012 amendment added wrongfully obtaining or storing someone else's identification code, and trying to get people to enter it on a fake screen, to the prohibited acts.

AnalogyIt is like a rule that bans both giving someone else's PIN over the phone to handle their bank account and telling that PIN to a third person without permission.

How to rememberThe core is not "access" but "breaking through a control." A door with no lock (access control) falls outside what this law protects.

Exam points

  • ExamWhat the law protects is a computer that is connected to a network and has an access control function (アクセス制御機能); unauthorized access (不正アクセス行為) is a violation the moment it is carried out.
  • ExamTelling someone else's ID and password to another person without the owner's consent is banned as facilitating unauthorized access. Obtaining or noting down that information for use in unauthorized access is prohibited too.
  • Mix-upThe Cybersecurity Basic Act (サイバーセキュリティ基本法) sets the principles and structure for defending the country, while the Unauthorized Access Prohibition Act (不正アクセス禁止法) bans individual intrusions and help given to them, and attaches penalties.

3 past questions on this term 不正アクセス禁止法

Cybersecurity Basic Act vs. Unauthorized Access Prohibition Act

AspectCybersecurity Basic ActUnauthorized Access Prohibition Act
Key differenceCore provisionsBasic principles of defense and each party's responsibilitiesProhibited acts and penalties
Who it addressesState, local governments, businesses, citizens and othersPeople who commit prohibited acts, and access administrators
Also provides forA strategy headquarters within the CabinetA duty for access administrators to try to defend their systems

特定電子メール法Act on Regulation of Specified Electronic Mail

Open in glossary 特定電子メール法

The Act on Regulation of Specified Electronic Mail (特定電子メール法) is a law that sets the rules senders must follow for email sent to advertise or promote, known as specified electronic mail (特定電子メール).

  1. Get consent in advance, as a rule
  2. Keep a record of consent
  3. Send with the required details shown
  4. Stop when the recipient refuses

Once someone asks to stop, send them nothing more.

4 / 4

The basic rule is opt-in (オプトイン): advertising email goes out only after the recipient has agreed in advance, though the law sets some exceptions. Senders must show their name, a contact for refusing further mail and other required details in the message. Keeping records that show consent was obtained, and sending nothing more to anyone who has refused, are also duties of the sender.

AnalogyIt is like a store rule that free samples go, as a rule, to people who ask for them, with a note kept of who asked and when.

How to rememberIts full name is the Act on Regulation of Transmission of Specified Electronic Mail. As the name says, its rules are aimed at the sender, not the recipient.

Exam points

  • ExamUnder the Act on Regulation of Specified Electronic Mail (特定電子メール法), the duties fall on whoever sends the advertising email, and they include being able to show later that consent was obtained.
  • ExamRunning mail on the basis that you stop only once someone refuses follows the opt-out (オプトアウト) approach, and can breach this law, which makes prior consent the rule.

3 past questions on this term 特定電子メール法

不正指令電磁的記録に関する罪Crime Concerning Unauthorized Commands Electromagnetic Records

Open in glossary 不正指令電磁的記録に関する罪

The Crime Concerning Unauthorized Commands Electromagnetic Records (不正指令電磁的記録に関する罪) is an offense under the Penal Code (刑法) that punishes handling, without a legitimate reason, programs such as computer viruses (コンピュータウイルス) that make a computer act against its user's intentions.

Punishable actDescription
Creating, providingMaking a malicious program or handing it to someone
DeployingPutting it where it can run on someone else's computer
Obtaining, storingGetting hold of a malicious program or keeping it on hand

Unauthorized commands electromagnetic records (不正指令電磁的記録) is a legal term for data carrying instructions that make a computer do something its user does not want. The punishable acts go beyond creating and providing to include deployment (供用), which means putting the program where it can run on someone else's computer, and even obtaining and storing it. The offense was created by a 2011 amendment to the Penal Code, and every act presupposes the absence of a legitimate reason.

AnalogyIt is like a rule on poison that covers not only making it but also handing it over, mixing it into food and secretly keeping it.

How to remember"Electromagnetic record" is the legal word for data. Read the name as "data carrying unauthorized commands" and the shape of a virus comes into view.

Exam points

  • ExamThe Crime Concerning Unauthorized Commands Electromagnetic Records (不正指令電磁的記録に関する罪) is an offense set out in the Penal Code (刑法), and it covers not only making a malicious program without a legitimate reason but also obtaining and storing one.
  • Mix-upThe Unauthorized Access Prohibition Act (不正アクセス禁止法) deals with misusing other people's identification codes (識別符号) and breaking in over a network, while the Crime Concerning Unauthorized Commands Electromagnetic Records (不正指令電磁的記録に関する罪) deals with viruses and other malicious programs themselves.

1 past questions on this term 不正指令電磁的記録に関する罪

Unauthorized Access Prohibition Act vs. Crime Concerning Unauthorized Commands Electromagnetic Records

AspectUnauthorized Access Prohibition ActCrime Concerning Unauthorized Commands Electromagnetic Records
Key differenceWhat it deals withMisusing others' identification codes or defeating access controlViruses and other malicious programs
Legal formA standalone lawAn offense within the Penal Code
Typical actsLogging in as someone else, giving out IDs and passwords without permissionCreating, providing, deploying, obtaining, storing

ウイルス作成罪Virus Creation Crime

Open in glossary ウイルス作成罪

Virus Creation Crime (ウイルス作成罪) is the common name for the Penal Code's Crime Concerning Unauthorized Commands Electromagnetic Records (不正指令電磁的記録に関する罪).

Although the name says "creation," it refers to a group of Penal Code offenses that punish providing, deploying, obtaining and storing as well as creating. Every act presupposes the absence of a legitimate reason, so legitimate work such as handling samples for antivirus research or product development is not covered.

Exam points

  • ExamEven though its common name mentions creation, the offense is not limited to making something. Obtaining a virus and keeping it on hand without a legitimate reason can also fall under the same offense.

2 past questions on this term ウイルス作成罪

Key points

  • The Cybersecurity Basic Act (サイバーセキュリティ基本法) sets the basic principles of national defense, the duties of the national and local governments and the structure for carrying them out, and asks businesses and citizens to take part as well.
  • The Unauthorized Access Prohibition Act (不正アクセス禁止法) covers computers that are connected to a network and have an access control function (アクセス制御機能), and bans using identification codes (識別符号) without permission and breaking in through weaknesses.
  • The Unauthorized Access Prohibition Act also bans giving out other people's identification codes without permission, obtaining or storing them wrongfully, and asking for input on fake screens.
  • The Act on Regulation of Specified Electronic Mail (特定電子メール法) makes opt-in (オプトイン) the rule and requires senders to keep records of consent and to show who they are and a contact for refusing mail.
  • The Crime Concerning Unauthorized Commands Electromagnetic Records (不正指令電磁的記録に関する罪), commonly called Virus Creation Crime (ウイルス作成罪), is a Penal Code offense that punishes creating, providing, deploying, obtaining or storing a malicious program without a legitimate reason.

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