The potential expansion of Computer Science - sect 662

A curious but lowkey human who would rather play deaf than showing up herself

[tthaojaytee1920152]

Week 13: 5G will shape the future of technology and have powerful implications for every corner of life.

What is 5G?

In the simplest terms, 5G is the fifth generation of mobile networks, after 4G, 3G, 2G and 1G. The new generation of networks always has stronger connection speeds than the previous generation. Moreover, it often has an influence over about a decade. Theoretically, 5G could be 100 times faster than 4G. In a real test, the speed of the new generation mobile network is about 20 times higher than the old generation.

However, compared to 4G, 5G is not only faster in terms of transfer speeds, but it can redefine traditional connections and reshape the future of the world of technology. When placed in the era of IoT, AI, 5G will promote unbelievable power. Currently, experts are still looking to exploit the potential of this technology.

 The power of 5G

The power of 5G is not merely on smartphones like 4G or 3G. In the 4.0 context with the vertical development of smart manufacturing, 5G will make an important contribution to the restructuring of the transport industry, industrial automation, and the creation of smart cities.

With fast transmission speeds, low latency, and high stability, 5G will allow AI to receive and process more information at the same time. Apparently, this will improve the automated production system with greater accuracy and productivity. New technology makes it easy for millions of IoT devices to connect. The smart home will become simpler that to run a smart city is not a distant future.

The transport industry also benefits directly from 5G technology. The world's busy trading ports such as Singapore and Hong Kong have applied new technology to build smart transportation systems. In the future, self-driving cars can safely operate themselves based on signals that are instantly updated via the 5G network.

VR and AR, in the new era, are also expected to make great strides thanks to the fast transmission line. The virtual reality glasses may not need the current content player. Yet, it can be procured directly from the cloud. This both changes the design of virtual reality devices and has a positive impact on the film industry.

In the medical industry, the distance between patients and doctors will be minimized thanks to the high-speed transmission of 5G. Home healthcare and counselling services will be smoother through live video calls anytime and anywhere. Distant rescue or professional training through virtual reality models in the 5G era is also forecasted to be much more accessible than at present.

Simply in the mobile industry, 5G's ultra-low latency advantage will facilitate IoT devices to last up to 10 years. That means you do not have to constantly change phones to use new technologies. Besides, the handsets will be lighter along with better battery as they will consume very little power.

Phones are just the beginning of 5G humility. This technology still has many hidden strengths that people have not fully exploited. The strength of the 5G era is covering globally. Since it is supported by large technology corporations and always in the development strategy of governments.

 The flip side of 5G

Besides the undeniable benefits, 5G networks also face much criticism from researchers. At the 2019 World Radio Information Conference held at the end of October in Egypt, weather scientists warned: 5G networks operating below 24 GHz could directly affect the precision of weather reports.

For a reason, weather forecasters are relying on this frequency via a satellite to warn about weather hazards. 5G networks can interfere with the signals scientists are monitoring.

Although there are no exact studies, there have been some rumours that stronger 5G frequencies could also affect human health. The FCC (US Federal Communications Commission) has repeatedly asserted that there is no convincing evidence that 5G radio waves are dangerous. "Although they have higher frequencies than those used for 4G, they are still within the limits of the radio spectrum that do not damage human DNA," the FCC statement said. 

The downside of the 5G network that has made the industry concerned is cybersecurity attacks. With the ability to connect more devices, hackers have more "backdoors" to attack Internet systems and smart devices in the home. 5G could cause Deepfake and Internet problems to occur so quickly and on a large scale that users could not defend.

[tthaojaytee1920152]

Week 12: Security Trends in cybersecurity in 2021

1. Intentional attacks originated from attacks on the software supply chain

During the fourth quarter of 2020, a series of attacks on the software supply chain took place. The most serious is the attack on installing malicious code in the software update SolarWinds Orion. SolarWinds is a company specializing in providing network management software for many government agencies and large businesses in the US and other nations. It is a form of attacking through a detour, rather than performing directly on targets (cooperates, conglomerates, political sides). Therefore, it will be troublesome to detect and handle attacks.

A supply chain attack is an attack that targets a business through its suppliers. This means the business that owns the larger or more complex the supply chain, the higher the risk of attack. The consequences of these attacks on businesses: information leakage, business disruption, revenue decline, reputation - brand damage and loss of opportunities for investment

The main reason for attacks on the supply chain is the loose security system in the operational process and cooperation between the parties. Specifically, many businesses allow suppliers access to "sensitive" information, which affects the business when it is exposed. An exploited supplier can have a wide range of effects on the partners that receive supplies from that supplier.

2. Cybercriminals will target 5G in 2021

Most countries are currently testing 5G. Therefore, the scenario of attack through this technology is still only the scenario that the security world gives. However, this will change next year as 5G becomes available in more regions. According to security firm Fortinet (USA), cybercriminals can take advantage of devices using 5G technology and speed improvements to create new threats at unprecedented speeds and scales.

The power of 5G is not only on smartphones, the new generation of networks with low latency, but fast transmission speed will also usher in a new era of IoT. Millions of smart devices will associate to operate smart homes, industrial parks and even smart cities. Hence, only by exploiting a vulnerability from a device, can hackers penetrate the whole system to steal data, hijack and execute attacks.

Shortly, smart devices are no longer simply targets for cybercriminals' attacks but become the "pathways" for larger attack processes. Currently, many social network users are tricked into transferring money, being lured to download files and click on links containing malicious code. In the era of 5G and IoT, hackers can silently monitor daily schedules. , habits and collection of some financial information about users, thereby creating credibility and increasing success rates for non-technical scams.

 3. Industrial control equipment systems have become targets of hackers

Industrial Control System (ICS) is a combination of technical means, software programs and people that control production technology in an industrial facility. Attacks on ICS have a common feature of being highly complex, meticulously prepared and implemented in stages, with devastating consequences. This is due to the complex structure and distinct characteristics of industrial control systems compared to conventional IT systems.

 In recent years, these systems are becoming the target of high-tech criminals. Examples are the attacks on Iran's nuclear facilities, German chemical plants, and Ukraine's electricity grid.

 4. Artificial Intelligence (AI) is the main solution in detecting and preventing cyberattacks

The advancement of AI has brought machine learning to all areas, including network security. Advanced algorithms have been used by security experts for face recognition, language processing, and threat detection. On the other hand, AI is also used by hackers to develop more sophisticated malware and attack methods, requiring businesses. Organizations must have more advanced solutions to prevent and protect the system.

 Therefore, the development of Artificial Intelligence is critical to the protection against attacks that are constantly evolving. AI will need to be up to date with the next generation. That includes using local network nodes from machine learning as part of an integrated system similar to the human nervous system. Improved technology with AI that is visible, predictable and resistant to future attacks will need to be crucial as the cyber attacks of the future will only happen in seconds. The leading role of the person and computer will ensure that security systems are well-informed, not only proactively against attacks, but also genuinely anticipating these events to avoid them.

[tthaojaytee1920152]

Week 10: In the future, we do not need to pay delivery fee!!!

Applying blockchain technology to goods transportation Logistics - the field of goods transport currently accounts for a large part of the world's GDP, so the application of blockchain technology is more and more interested.

So now, how will the application of blockchain technology in the freight process help the transport industry save costs? What is blockchain technology? Let's learn about the blockchain saviour applied in the international transport industry through the following article:

1. What is blockchain technology? Blockchain technology is a distributed or easier-to-understand digital ledger than a database in a network. The ledger is shared among the people who join the network. This shows that in the entire system there is not only one single location, a single document can serve as a single authority, since duplicates of the same ledger version are located in many places. (Lem Thi Phen, 2020)

All these copies are updated when new data or transactions are written to the blockchain through the consensus of all participating. Miners are responsible for approving transactions and monitoring the network by solving sophisticated formulas with the help of a computer. It is a P2P peer-to-peer system, eliminating all intermediaries, enhancing security, transparency and stability as well as minimizing costs and human error.

By allowing digital information to be distributed but not copied, blockchain technology has created the backbone of many activities on the internet. human resource management industry

The fact is that the major oil producers, buyers and banks are all wanting to say goodbye to the sea waybill system because it takes a lot of paperwork to prepare, the transaction takes a lot of time and is easy and risk because the paper may be damaged and lost.

So how has Blockchain technology been used, especially in the international transport industry?

2. Significance of Blockchain technology application in transport Blockchain technology appears as a solution to help the shipping industry achieve 2 purposes: transparency and eliminate cumbersome paperwork. The first is the application of Blockchain technology to manage and track global freight movements, in a transparent and irreversible system; The second is the application of smart contracts to replace complex paperwork and speed up the transportation of goods.

3.Some examples of blockchain technology application in freight transportation

Maersk - IBM Cooperation Maersk, the world's largest shipping company, has officially partnered with giant IBM to launch a new Blockchain platform for application in the logistics industry. This is considered a revolution that can change the entire global freight transportation.

FedEx - BiTA cooperation Shipping and logistics conglomerate FedEx is moving to decentralized technology by implementing Blockchain solutions into its core processes. The group is partnering with Blockchain in Transport Alliance (BiTA) - a leading group of companies in water transport, transportation and logistics, to jointly develop and deploy Blockchain technology in everyday operations.

[tthaojaytee1920152]

Week 9: Bitcoin - An investment or a gamble

Bitcoin is certainly not a name that is not far from many people. Especially in the present time, BTC is emerging because of its staggering profit performance. However, there are still many people who do not understand Bitcoin, do not know what bitcoin is used to make and invest in bitcoin. Hence, let us learn about Bitcoin, how to play bitcoin ... in this blog.

What is Bitcoin?

Bitcoin is a digital currency (virtual currency), was born by Satoshi Nakamoto as open-source in 2009. The purpose of creating Bitcoin was to create an online currency that inherits Digi Cash’s which was a plan from the 90s of last century about a safe and secure cryptocurrency.

From the perspective of an investor, not a technical person, you just need to understand Bitcoin is an electronic currency, which can be transferred between one person to another.

The beauty of Bitcoin currency is that there are no intermediaries. Bitcoin uses a peer-to-peer protocol on Blockchain technology for all transactions. It excludes third-party intermediaries. Money is sent directly from person to person. Therefore, transaction fees are almost zero. Moreover, none of the countries or organizations can control these transactions and the amounts of currency. Because of that nature, many individuals and organizations support the use of Bitcoin.

2.Is bitcoin virtual money?

The answer is both yes and no. 

For the no answer, Bitcoin is not a Virtual Currency. Sadly, in some countries around the world, it is not yet recognized as a fiat currency. Saying the word "virtual" will usually be something bogus. For example, the money you load into the game can only be used in the game and converted to cash in a community group together. Of course, the value in cash will be much smaller.

On the other hand, Bitcoin is inherently created from computer algorithms. But with its protocols and concepts, you can purchase and sell any time you want, trade with someone else or do an exchange with the exact cashback at that time. Moreover, several major companies and enterprises in the world allow payment for their services and products in BTC such as Tesla. The one that made the world got concussed after successfully purchasing 1.5 billion dollars in bitcoin.

 3.The advantages of Bitcoin

Not regulated by anyone: Bitcoin is the currency of the internet and is not regulated by any government, bank, or organization.

 No counterfeiting: With paper money can be counterfeited, but Bitcoin can't, it eliminates the problem of counterfeiting, since it does not exist in physical form but is generated by algorithms.

 Low and fast transaction fees: If you use a bank or some money transfer service to send money to relatives, it will take quite a fee, as well as take a few days if sending abroad. With Bitcoin, the fees are extremely low and take only 20 minutes to 30 hours.

Information security and safety: Bitcoin uses an anonymous transaction system Blockchain (Blockchain technology is another field that we will discuss deeply in the last post). Therefore, when you make a transaction no one will know who you are, where you are.

 4.Should we invest in Bitcoin?

In this section, I will talk about my personal opinion about whether the year 2021 and the next years to invest in Bitcoin or not. This is not a piece of investment advice. You should just refer, and decide your investment or not. It is your money, so you must be responsible for it.

Around March 2017, when the Bitcoin price was just over $ 1,000. By the end of 2017, it had reached $ 20,000. I found that the price of bitcoin was greatly affected by "acceptance". Acceptance here can be from countries, companies, large enterprises, and people in large markets such as the US.

The main reason for pushing the price of Bitcoin to 20k USD before the end of 2017 was due to the "futures of Bitcoin" operated by CME and CBOE - the two largest stock exchanges in the United States. They put Bitcoin futures on their exchange. Besides, the FOMO (Feeling of missing out) effect pushed the price of BTC to historic highs. Then, as these futures contracts matured and some countries tightened their regulation, investors lost faith in the future of BTC, they sold off and pulled the price of BTC down, gradually descending to the current level of more than 6,000 USD.

 Nonetheless I, personally believe that Bitcoin in the future will become a legal form of payment in many countries and a large number of users will accept it as well as other coins such as Ethereum, Ripple, ... because there are advantages that fiat cannot have (mentioned above).

In conclusion: Bitcoin is still a potential investment in 2021. Definitely, years after it will continue to rise in price and begin to stabilize. However, before investing, you must always determine that investing in Bitcoin in particular, and the electronic money market, in general, is a form of super-profitable investment. This is a brand to make a lot of money, along with the risk is always latent. No one can be blamed if you lost your interest or your Bitcoin lost its value.