astronomy

Park Jin Hyok

Park Jin Hyok is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Park Jin Hyok rather than just read about it. In short: Park Jin Hyok (Korean: 박진혁; born February 4, 1990) is a North Korean programmer and hacker. He is best known for his alleged involvement in some of the costliest computer intrusions in history.

Key takeaways

Park Jin Hyok belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Park Jin Hyok to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Park Jin Hyok from memory before moving on to harder problems.

Reference excerpt

Park Jin Hyok (Korean: 박진혁; born February 4, 1990) is a North Korean programmer and hacker. He is best known for his alleged involvement in some of the costliest computer intrusions in history. Park is on the FBI's wanted list. North Korea denies his existence.

Life and career

Early life Park attended the Kim Chaek University of Technology in Pyongyang. He has traveled to China in the past and conducted IT work for the North Korean company "Chosun Expo" in addition to activities conducted on behalf of North Korea's Reconnaissance General Bureau.

Lazarus group and computer hacking

Park is a member of a North Korea's government-funded hacking team known as "Lazarus Group (or APT 38)" and worked for Chosun Expo Joint Venture (aka Korea Expo Joint Venture), a North Korean government front company, to support the North Korean government's malicious cyber actions. Chosun is affiliated with Lab 110, a component of North Korea's military intelligence and other Expo Joint Venture had offices in China (PRC) and North Korea.

Sony Pictures hack

In November 2014, the conspirators launched a destructive attack on Sony Pictures Entertainment in retaliation for the movie The Interview, a political action comedy film that depicted assassination of the DPRK's leader by a CIA spy. North Korea denied allegations of hacking.

WannaCry ransomware attack

The United States Department of Justice has charged Park and other members of the Lazarus group for the WannaCry ransomware attack of 2017, which involved the spreading of ransomware that encrypted files on victims' computers after spreading itself to other vulnerable devices on the local network that the compromised computer could access. It would then request ransom payments be made in the form of cryptocurrency in exchange for decryption keys allowing victims to recover their files. The attack affected countless numbers of businesses and organizations throughout the world, including in one incident infecting the United Kingdom's NHS, where nonfunctional computer systems led to thousands of appointments being canceled.

See also Lazarus Group 2009 DDoS attacks against South Korea 2013 South Korea cyberattack 2014 Sony Pictures hack WannaCry ransomware attack

References

Illustrations

Worked examples

Example 1 — a first encounter with Park Jin Hyok

Start with the simplest possible case. Write down what Park Jin Hyok claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Park Jin Hyok before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Park Jin Hyok ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Park Jin Hyok

In research: Park Jin Hyok appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Park Jin Hyok in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Park Jin Hyok is common in secondary-school and first-year university syllabi. It links to neighbouring topics 21st-century North Korean people, Asian people whose existence is disputed, Fugitives wanted by the United States, so understanding it makes those chapters shorter.
In everyday life: Look for Park Jin Hyok outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Park Jin Hyok” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Park Jin Hyok in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Park Jin Hyok means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Park Jin Hyok out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Park Jin Hyok in simple terms?

Park Jin Hyok (Korean: 박진혁; born February 4, 1990) is a North Korean programmer and hacker. He is best known for his alleged involvement in some of the costliest computer intrusions in history.

Why does Park Jin Hyok matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Park Jin Hyok?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Park Jin Hyok.