Watch out for WhatsApp scammers

MCMC: Beware of scammers trying to take over your WhatsApp account 

 MCMC issued a warning to alert the public to increasing reports of WhatsApp accounts being hijacked

MCMC said scammers often pose as friends or family members, using accounts that scammers had already successfully hacked into, to try to trick them into revealing their six-digit WhatsApp verification codes. — Bloomberg

The Malaysian Communications and Multimedia Commission (MCMC) has issued a  statement warning the public to be wary of increasingly inventive tactics employed by scammers trying to hijack a user’s WhatsApp account, due to increasing reports of fraud cases being committed through the app.

MCMC said scammers usually manage to take over victims’ WhatsApp accounts by tricking them into divulging their six-digit verification codes, which users will usually receive when there is an attempt to change the phone number associated to their account.

To do this, scammers have been known to contact potential victims while posing as a hapless individual or business claiming to have mistakenly keyed in the victim’s phone number while trying to complete an online transaction, explaining that as a result the authorisation code for the transaction had been sent to the victim’s phone and imploring them for help retrieving the code.

These appeals could even come from the victim’s family members or friends via accounts that scammers had already hijacked, said MCMC.

This tactic commonly misleads the victim into thinking they would be sending the scammer an unrelated TAC (transaction authorisation code) when in fact they would be handing over the six-digit verification code to the victim’s own WhatsApp account.

Those who have been duped into giving up their codes could end up having their accounts stolen by scammers, added MCMC.

MCMC said scammers have also impersonated WhatsApp employees to fool users into sharing their verification code, adding that there have also been instances where the scammer would deliberately fail at keying in the code several times in order to force an automated system by WhatsApp to call the user about their verification code.

In this instance, the scammer would also contact the user to ask for the code while pretending to be someone else. If the user did not answer the automated call by WhatsApp and it goes into the user’s voice mailbox, then the scammer would try to randomly guess at or ask for the user’s voice mailbox PIN code to access the recording, according to MCMC.

The regulatory body advised WhatsApp users to be suspicious of any attempts to procure their six-digit verification code, adding that it is absolutely imperative that users never reveal the code to anyone else to prevent their accounts from being hijacked.

It added that users should also enable two-factor verification on WhatsApp and utilise more complicated PIN numbers for their voice mailbox as additional security measures.

According to an  FAQ by WhatsApp, a user may be sent the verification code via SMS – even when one wasn’t requested – for a number of reasons.

WhatsApp said this could happen due to someone mistyping their own number, or a hacker attempting to take over the person’s account.

Without the code, the hacker will not be able to complete the verification process, which would prevent the account from being hijacked.

If your account has been stolen, you will have to sign into WhatsApp with your phone number and verify your phone number by entering the six-digit code you receive via SMS.

Once you enter the six-digit SMS code, the individual using your account will be automatically logged out.

You might also be asked to provide a two-step verification code. If you don’t know this code, the hijacker using your account could have enabled two-step verification.

You must wait seven days before you can sign in without the two-step verification code, according to WhatsApp.

Regardless of whether you know this verification code, the other person will be logged out of your account once you entered the six-digit code received via SMS.

In a separate FAQ about  stolen accounts, WhatsApp also advised the victim to inform family and friends if they suspect someone is impersonating them in chats.

Users whose WhatsApp accounts have been stolen are encouraged to file a complaint with MCMC or lodge a report at the nearest police station.

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China needs to lead global vaccinations

 

COVID-19 pandemic: From 1 to 100 million

 


https://youtu.be/_D4d9OXz8V8

As of Wednesday Beijing time, over 100 million people around the world have been infected with COVID-19, with over 2.15 million deaths. The severest pandemic since the beginning of the 21st century has brought great sufferings to the people and incurred huge losses. It has provided lessons.

As World Health Organization Director-General Tedros Adhanom Ghebreyesus wrote on Twitter, "Numbers can make us numb to what they represent: every death is someone's parent, someone's partner, someone's child, someone's friend." After all, humanity shouldn't be numb. We must keep the thirst for humanitarianism and always spare no efforts. Humanity must not connive in the growing number of deaths - it is a shame of the modern civilization.

Many lessons can be drawn from the COVID-19 pandemic that manages to rage across the globe. The biggest one is that we humans should have made full use of the capabilities to contain the pandemic, but the interference of politics with science and the resulting disunity among major countries have allowed the coronavirus to take advantage. What was supposed to be a unified war against the epidemic has become separate wars within different countries and regions. The problem is clear for all to see, but we have not yet been able to mend the fold quickly enough to build the collective human solidarity that was so badly needed.

Within many countries, too, it has been difficult to forge consensus and solidarity around the pandemic prevention routes. How to coordinate the fight against the epidemic and to boost economic recovery has become a common question. In this process, the opinions of scientists are often marginalized, and some influential politicians put non-scientific considerations first at the critical moment, leading the fight against the pandemic to go astray.

The ravaging epidemic has also exposed the fragility of economic activity and the way human society is organized. Most societies in general are poor in vigilance to disasters with a lack of mobilization, and dependent too much on fair weather for prosperity. The pandemic this time showed the destructive power of a public health crisis at a time when the world's population is growing and more socially intense. Human society must increase its investment in public safety.

After a terrible year, we are now at a new stage of the pandemic. Vaccines at this stage have the potential to revolutionize the fight against the pandemic and reshape the global structure.

China is a large populous country. It has achieved outstanding success in the last round of the epidemic fight, laying a sound foundation for the next stage of the war against the coronavirus. The country is also at the forefront of vaccine research and development. Next, we must create the fastest vaccination rate and stand at the front ranks on the herd immunity list. This is a new test for China.

We contained the epidemic without vaccines in the last round of the virus fight. We cannot continue such an advantage. The speed of vaccine promotion will greatly affect the opening-up of all societies in the future. The US and European societies suffered heavy losses last year, but at the same time they have developed relatively strong endurance toward the pandemic. If their vaccination is fast, this will promote mutual opening-up among them, which will exert pressure on countries which are slow in vaccination.

Only by getting vaccination rates in China roughly on par with the rates in the US and European countries, along with keeping the social distancing capabilities we already have, can China continue to lead in being open in the future and further provide the greatest impetus for the recovery of the global economy.

Before the next winter comes, China needs to strive to get the majority of the vulnerable and high-risk groups vaccinated and to expand the vaccination coverage to the general population. We need to guarantee the total number of people vaccinated in China several times higher than the number in the US.

China also needs to provide large quantities of vaccines to developing countries, and the total number of vaccines exported should be the largest. This is the role China should play as a major manufacturing country, and this is what is expected of China.

To accomplish these tasks at the same time, China's vaccine production must speed up as soon as possible. We don't have time to celebrate our past achievements. We need to move forward and focus on the future

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The different types of Covid-19 tests

3 Types of COVID-19 Tests, and Which One Is the Most Accurate

https://www.health.com/condition/infectious-diseases/coronavirus/covid-19-test-types 

  Health authorities worldwide use either RT-PCR or RTK-Ag to test the virus

 There are two known popular Covid-19 tests available and used by the health authorities worldwide to detect the virus.

The two tests – reverse transcription polymerase chain reaction (RT-PCR) and antigen rapid test kit (RTK-Ag) – require nasal or throat swab samples.

RT-PCR is considered the gold standard in diagnosing the Covid-19 virus.

It can detect if an individual has an active Covid-19 infection and the test has typically high sensitivity rates, though this also means the sample has to be carefully prepared to avoid contamination.<

RT-PCR is a molecular test that is able to detect minute quantities of Covid-19 virus’s ribonucleic acid (RNA) in the nasal or throat swab sample taken from an individual.

Chemicals are used on the swab to remove other substances and extract only the RNA in the sample.

The RNA is converted to DNA through the “reverse transcription” process, and extra short fragments of DNA are added by scientists to build DNA strands and to add marker labels to them to detect the virus.

The mixture is placed in a machine that creates copies of the viral DNA, during which the marker labels release a fluorescent dye that is measured by a computer.

Depending on the lab and logistics, results can be obtained in two hours, or up to several days if the sample needs to be shipped across distances.

The RTK-Ag test, on the other hand, is faster than the RT-PCR test, as it can generate results within 15 to 30 minutes.

As such, RTK-Ag has the advantage of detecting Covid-19 outbreaks quickly and in large quantities, but its accuracy is lower than the RT-PCR test and it may produce false-negative results (leading to a false sense of security).

The Health Ministry uses the RTK-Ag as an alternative to the RT-PCR in certain situations, in order to obtain test results within a shorter time in circumstances where molecular testing is not available.

Antigen tests work by detecting specific proteins on the surface of the virus, as opposed to the RT-PCR test which detects the virus’s genetic material.

Yet another Covid-19 test is the antibody test, which unlike the RT-PCR and RTK-Ag tests, is detected through a blood sample. Samples are obtained via pricking the finger or drawing of blood, and results can be obtained within a few days.

However, the antibody test is not suitable to be used to detect active Covid-19 infections as it can only show that a person has been (or never been) infected by the virus in the past.

The test picks up on antibodies, which are proteins created by a person’s immune system after they have been infected or vaccinated.

According to the US Centers for Disease Control and Prevention, it will take one to three weeks after infection for a person’s body to produce antibodies.

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