While Malaysia and North Korea are doing their best to solve the diplomatic spat between the two governments, attention is now focused on the presence of more than 1,000 North Korean citizens in Malaysia.
The assassination of North Korean Kim Chol, who was widely reported to be Kim Jong-nam, the estranged half-brother of North Korean leader Kim Jong-Un, at the KL International Airport 2 (KLIA2) three weeks ago, has sparked the interest of many quarters over Pyongyang's intelligence operations in Malaysia.
Masquerading behind careers of various fields, a source told Bernama that the presence of the North Koreans in the country was all planned out in order to form an organised intelligence network.
Thus, it is not difficult to understand as to why quite a number of North Koreans are working as information technology (IT) specialists and masquerading behind local companies in Cyberjaya - to help them to gather information and data internally.
"These are not ordinary people because they are specially trained before being selected by the regime to work abroad.
"While being sponsored by local companies, their presence in Malaysia are not just to work but also (to function) as trained spies," said the source recently.
These group of people are part of approximately 100,000 North Koreans working overseas worldwide and have become valuable 'resources' to the regime as they are also sending their hard earned money to their home country.
In fact, it is said that every member of North Korean families abroad is required to report themselves at their embassies on a monthly basis and will be forced to undergo 'debriefing' before they return to the society.
It is also learnt that in addition to IT, the North Koreans are also active in iron ore mining in Sarawak and as partners to Malaysian businessmen.
"They are trying to export Malaysian products to North Korea and vice-versa even though they know many quarters are aware of the restrictions imposed by the United Nations (UN) on their country," said the source.
The source also said it was now a practice for employers to pay the salaries of the North Koreans directly to their embassy here, while the employees would only receive living allowance.
"The embassy usually takes the money out of Malaysia in the form of cash because they cannot make online transactions due to the restrictions by the UN on Pyongyang.
"They will carry bags containing money and get cleared by the airport security while using their diplomatic privileges," said the sources.
Now, the question is why more North Koreans work in the IT sector? How did the republic manage to produce a lot of IT experts?
The source said the answers could be found on Hackread, a Milan-based online news portal.
The portal revealed that an IT unit, known as Bureau 121, which was set up by the regime comprised an elite group of well-trained hackers to perform the duties of cyber espionage and cyber crime.
Bernama check found a series of interview between the news portal and Prof Kim Heung-kwang, a North Korean who managed to escape to South Korea in 2004.
In the interview, Heung-kwang admitted he had taught the Computer Science subject in the republic to the elite group of hackers for 20 years.
The academician also said only those who worked for Bureau 121 were allowed to gain access to internet or to leave the country.
However, the source said the active intelligence agents could not escape from being monitored by the Malaysian authorities.
"All the intelligence services in the region are aware of this and their covert operations are being intensified round-the-clock to monitor the activities by North Korea," the source added.