On this occasion I will discuss the tapping action carried out on the submarine data transmission line via fiber optic cable, which lately often occurs, especially inter-country interception, even this interception also occurs in our country Indonesia. in English the wiretapping phrase is called interception. Kamus.net translates intercept as arrest, capture, intercept or bypass. Whereas in the Oxford dictionary is defined as to cut off from access or communication. In the Big Indonesian Dictionary tapping is listening (recording) information (confidential, conversations) with other people deliberately without the knowledge of the person.

Optical fiber is a transmission line or a type of cable made of glass or plastic that is very fine and smaller than a strand of hair, and can be used to transmit light signals from one place to another. The light source used is usually a laser or LED.

Or optical fiber can also be interpreted as a transmission medium that can deliver information in the form of light. the use of light as a medium for information delivery makes this media able to deliver information with a large capacity in a very short time. So that currently optical fibers are widely used in telecommunications. This optical fiber network must be accompanied by reliable security techniques in the process of transmitting information, because if there is an attack in an optical fiber network, the data that will be received by the receiver will be very different from the data sent by the transmitter. So this is very fatal if the information sent has a very high level of confidentiality such as State security information.

existing data and internet networks throughout the world are being distributed or transmitted by fiber optic cables such as federal cables or supreme cables throughout the world.

However, did you know that almost all countries in the world require their secret services to conduct searches and screening of international telecommunications networks in circulation. That is why an obligation was issued for telecommunications companies from various countries around the world to provide fiber optic cable access to the government if the network has crossed the borders of other countries.

Tapping Underwater Fiber Optic Cables Is a Security Threat in the Interconnection Era,existing fiber optic networks can also be tapped in a more secret and more discreet manner without the knowledge of the network manager

To note, that the optical fiber cable that is often installed on the mainland there are about 144 optical fibers. Unlike the submarine cable network that can only accommodate a maximum of eight optical fibers. With this pattern, the electronic data will later be converted into a very short flash of light.

There are about 10 billion flashes of light that pass through each of these optical fibers in a fraction of a second. So in other words, each existing optical fiber can transmit data of 1.2 to five Gigabytes per second.

Every fiber optic cable needs an amplifier,

Maybe this is only known by a handful of people, that after passing a certain distance, data transmission in optical fiber will be weakened. At least, every 80 kilometers there must be a signal reinforcement again, and must be renewed continuously through the help of a regenerator. This regenerator will be paired together with fiber optic cables in the sea.

At this weak reach point, fiber optic cable is easy to do wiretapping due to fibers that are no longer bound and even decomposed one by one. This is where many people who try to do wiretapping.

Indonesia is tapped through underwater fiber optic cables?

Tapping activity is reported to have occurred in the South East Asia-Middle East-Western Europe-3 (SEA-ME-WE-3) submarine fiber optic cable line. It turns out, Indonesian telecommunications traffic is also through this channel. Tapping action on submarine fiber optic cables is very possible.

Previously, confidential information from Edward Snowden – a former CIA worker who became a US fugitive – revealed that there was spy activity from underwater cables that empties into Singapore. This has also been going on for a long time.

As reported by the Sydney Morning Herald, Australian intelligence agencies, the Australian Signals Directorate, in collaboration with British, US and Singapore intelligence conduct tapping on the SEA-ME-WE-3 submarine cable that ends in Tuas, the westernmost region of Singapore.

This cable is an access point that connects communications across countries from Japan, Singapore, Australia, to a number of countries in the European region. This cable is also seen crossing Indonesian waters.

Sydney Morning Herald revealed, the cable controlled by SingTel and the Department of Defense in Singapore has been recording data activity since 15 years ago. If true, it means that a lot of data has been known by the agents of each country.

Every country has laws which prohibit wiretapping via fiber optic cable. Legal parties will try to make further clarifications to interested parties. If it is indeed proven that there is a wiretapping, Indonesia can also propose legal proceedings under the umbrella of the Electronic Information and Transaction Law (UU ITE).

Several attempts to overcome tapping actions:

• Make clear laws related to eavesdropping via fiber optic cable

• Routinely checking underwater data transmission lines through fiber optic cable

• Take firm action and follow up on wiretapping cases that occur in Indonesia

• Use of Security Techniques in Optical Fiber Networks with Anti-Jamming and Steganography Methods Using Optisystem Modules.

From the discussion above we can realize that network systems or data transmission lines through fiber optic cables are still prone to interception, and it happens on a large scale in the form of tapping important data and can be classified as confidential data, which can lead to a variety of large impacts for the inter-State that conducts wiretapping. Until it can cause disputes, divisions and cold war between countries. That way the State must be more aware and concerned about the security of data that is in the underwater transmission line through fiber optic cable. This can be done by taking preventive measures such as some examples that have been explained in the discussion above. So that I can convey in this discussion about “Fiber optic cable tapping is a threat in the interconnection era”, hopefully it can be useful,thank you.


  1. fantastic points altogether, you simply gained a new reader. What would you suggest about your post that you made a few days ago? Any positive?


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