WannaCry is the largest viral ransomware attack on computers ever identified, affecting 20,000 users, infecting thousands of computers in 150 countries and shutting down factories. It could have been avoided.
On Friday 12 May, the world was hit by the largest viral ransomware cyber-attack on computers ever identified. The malicious software exploited a flaw in Windows systems in order to carry out the attack. WannaCry was able to lock users' files and force them to pay in order to regain access to them. The ransom was $300 (€267), payable in bitcoins. However, those who chose to pay up did not always receive their decryption key.
Blame it on Microsoft? Too easy!
Any computer which has not been equipped with the security update available since March (Bulletin MS17-010) can be hacked. Despite the majority of businesses making a point of implementing updates for servers and workstations on a fairly regular basis, there are still risks, particularly for payment machines, interactive purchasing machines, window displays and cash machines, as they may still be using outdated versions of Windows XP Embedded.
"A study of 3,000 companies in the West shows that more than half are completely unprotected against cyber-attacks." Hiscox
A crucial wake-up call
Although it not feel like it,
"this attack is a good thing because it has certainly been a massive wake-up call", said Vladimir Kola, head of security for consultancy firm NetXP.
Of course, there's no such thing as 100% security, but many software publishers and security experts have pointed out that this disaster could have been averted. According to John Miller, Manager of Threat Intelligence at FireEye:
"When you see how quickly and prolifically this ransomware system has spread, we have to realise that this activity poses major risks and all organisations using potentially vulnerable Windows machines must address them".
Preventive measures are essential
"With the new cyber threats being used today, companies and organisations can no longer afford to be the slightest bit negligent about security", warned Corey Nachreiner, CTO of WatchGuard.
Your to-do list
You can act and react preventively, taking proactive measures to secure and protect your data. Here are our tips:
- routinely update your software and operating systems (including the software update released by Microsoft in March 2017);
- manage your company update policy based on up-to-date information and risk assessments;
- regularly save your critical data outside of your IT system;
- use a gateway antivirus that can detect a critical attack on the scale of WannaCry;
- install an effective and up-to-date intrusion prevention system (IPS).
How do fraudsters operate? A summary of the most common techniques
Organised and professional fraud have not only become more common, the approach of fraudsters is also increasingly subtle, bold and sophisticated, particularly if they are targeting organisations' financial transactions.
They mostly use (a combination of) the following techniques:
Fake or forged transfers
This technique means that the fraudsters send fake "manual" transfers, i.e. paper transfer forms, letters or faxes, to their target's bank. The signatures on these payment orders tend to be perfectly recreated and can barely be distinguished from the original.
In this case real invoices are intercepted and forged before they reach the debtor or the bank. This takes place at the postal service or at the organisation itself in cases of internal fraud.
The fraudsters then change the beneficiary's account number. For invoices this is often done with a sticker asking you to make your payment to a new account number from now on – hence the name "sticker fraud" – but nowadays devices or software are also used to create near perfect forgeries.
Social engineering and phishing
This form of fraud is based on manipulation: the fraudsters try to mislead their victims by urging them to perform certain transactions, usually involving the transfer of money. To make their orders seem real, they first collect names, direct telephone numbers, account balances, order or customer lists, etc.
This data is usually gathered from public websites or social media or even by retrieving non-shredded documents from bins. However, sometimes the fraudsters also contact the victim directly. They do this in an exceptionally convincing way, for example by pretending to be a member of the management or a colleague from a foreign branch. This type of fraud often results in heavy losses that are sometimes accompanied by extra damage in terms of solvency and the capacity to pay back loans.
Phishing is a specific sub-form of social engineering used by criminals to "fish" for personal data, mainly by e-mail, that enables them to steal money from a bank account at a later stage. This is often done by inspiring a "feeling of fear": they claim that your PIN code has expired or that your account will be closed if you do not respond immediately. In order to increase the fraud's chances of success, the criminals often call the victims in order to "guide" them (also called "vishing").
Whereas phishing is mainly known through mass mailings – a large group of people will receive the same, often rather amateurish personalised e-mail – we have now also noticed a shift in direction towards "spear phishing". Spear phishing means that the fraudsters focus on a very limited number of victims, after they have gathered as much personal information as possible in order to make their message as plausible as possible. These victims are obviously a "lucrative" target for the fraudsters: with affluent private individuals or companies, the loot is often much greater
Whereas social engineering is mainly based on human shortcomings, hacking focuses on technical or material shortcomings. It all starts with a virus that hackers smuggle into your computer. This program collects your data and observes what you are doing. When you open an online banking session shortly afterwards, the hacker is informed. They can then make a pop-up appear on your screen urging you to confirm a payment order or enter your secret code, for example.
Nowadays hackers also increasingly commit multi-channel fraud, during which they call you during your online banking session to request confidential information.
A number of recent fraud cases show that a new and particularly alarming fraud technique is on the rise. An accomplice of the fraudsters seeks employment with the targeted organisation and becomes familiar with the payment and monitoring procedures. After a few months, this "sleeping fraudster" will carry out one or several large transfers to the fraudsters' account and disappear into thin air.
Half of Belgian businesses have inadequate security against cyber-attacks
From the Global Information Security Survey it appears that 1 in 2 Belgian companies does not feel able to track down sophisticated cyber-attacks.
The annual Global Information Security Survey looked at the cyber security of 1,755 organisations from 67 countries, including 56 from Belgium. The results from our country are, to say the least, alarming: half of respondents do not currently feel able to detect a sophisticated cyber-attack, while according to 88% the architecture for securing information does not fully meet the needs of their organization.
The respondents are most concerned about cyber-attacks by criminal organisations (54%), hacktivists (54%), hackers working solo (53%) and – surprisingly – their own employees (40%). Phishing and malware are also high on the list of potential threats.
Five to midnight
Although the respondents realise that cyber fraud is becoming ever more sophisticated and that danger lurks around many corners, less than half have a team for system security. The reason is simple: the vast majority of respondents admit they have no qualified employees available and/or find it difficult to attract people with the necessary skills.
27% do not analyse any cyber threats, while 21% do not even have any identity and access management. In other words, the door to the digital world is wide open to a whole host of trouble. Modernisation of security is therefore urgently needed.
(Source: EY and De Tijd)
What to do in case of fraud?
Who can you contact when facing a case of fraud?
You received a suspicious e-mail, which you did not respond to
Forward the suspicious e-mail as an attachment to our specialists at firstname.lastname@example.org. They will try to eliminate the fraudulent website as soon as possible.
You shared an electronic signature or other confidential information (by telephone or on a website), you entered information into suspicious screens in PC banking or you clicked on a link in a suspicious e-mail.
Please contact our Help Desk.
- PC banking/PC banking Pro +32 (0)2 228 08 88
- PC banking Business +32 (0)2 565 05 00
- Central Competence Centre Connexis +32 (0) 2 228 47 77
- Isabel +32 (0) 2 404 03 35
- Isabel (BNP Paribas Fortis) + 32 (0) 2 565 28 34
Please contact your relationship manager immediately.
You are facing a different type of fraud
Please contact your relationship manager immediately
Do you have any further questions about how you can actively protect yourself against the risk of fraud?
Discuss them with your relationship manager. They can give you formal advice in person or appeal to the bank's specialists to discuss the specific risks for your organisation (in terms of your payment services or financial products, for example).
Stop fraudsters in their tracks
Fraud is certainly not something that only happens to other people. It is therefore imperative to give prevention the time and attention it deserves. With some relatively small actions, you can considerably reduce the risk of becoming a victim of fraud. And of course, you are not alone in the struggle against fraud!
What is being done by your bank?
Just like fraud itself, fraud control has also become a fully-fledged specialisation. BNP Paribas Fortis is strongly committed to fraud control and makes the necessary resources available in this respect. A whole series of systems and measures have already been introduced to stop these professional fraudsters in their tracks:
- Prevention through permanent training for the bank's employees and internal and external communication;
- Inspection and tracking systems to detect any abnormal transactions, even if the payment seems perfectly fine (correct channel, correct signatures, etc.). Your relationship manager may have already contacted your company to have a transaction confirmed.
A lot of attention is also paid to tracking and eliminating so-called "money mules". intermediaries who make their bank account available (either unwittingly or maliciously) to criminals in order to transfer stolen money abroad;
- Analysis and improvement systems used in cases when fraud unfortunately occurred or new fraud techniques or trends are surfacing.
These resources are certainly not watertight, but they make it possible to reduce the risk substantially. The bank also deploys specialists who are fully committed to fraud detection and prevention. They also conduct in-depth investigations into fraud incidents, file claims with the police and take the necessary measures to protect and recover any embezzled money.
Which measures can you take?
1. Thorough information, the basis of an effective prevention policy
- Explain that this risk exists and that your employees should consider all forms of information as tangible company assets – there is no such thing as "innocent" data.
- Encourage them to critically investigate and to report any questions deviating from the normal state of affairs.
- Work on developing a monitoring culture within the workplace. This does not need to affect a serene working atmosphere or trust between colleagues however.
- Be wary of any change of habits in your customers or suppliers. For example, if you are asked to make an invoice payment to an account abroad although you usually make your payments to a domestic account, this could indicate that something is wrong. Be sure to check this with your customer or supplier through known, reliable communication channels.
2. Protect your IT systems
First of all, some nuance is warranted: despite reports in the press about hacking and other fraud attempts, PC banking Business, Connexis and Isabel are still by far the safest channels for your financial transactions. However, we recommend you observe the following rules:
- Install an anti-virus program and a firewall on your computer and update these systematically.
- Do not respond to any questions by telephone. Your bank will never ask you for a code or any confidential information by telephone.
- Only open the PC banking Business or Isabel session. In other words, make certain that other websites are never active.
- Only sign the transactions that you were expecting or that you entered yourself with your electronic codes. If in doubt, stop the current transaction immediately.
- Do not click on links to the bank's website, particularly if they have been sent by e-mail. Always type the URL yourself.
- Take the time to establish whether any suspicious transactions were made, such as transfers to unknown or foreign accounts.
3. Do not allow any phishing for your data
All in all, phishing is relatively rare. Nevertheless, you may suddenly receive an e-mail that looks exactly like a message from your bank. Remember that your bank will never ask you for any personal data by e-mail (or telephone). If you do receive such a request, it will not be from the bank.
Other possible indications are poor language in the message, an incorrect salutation or the fact that the mail ended up in the spam folder. We recommend you mark a phishing e-mail as "unwanted e-mail" in your e-mail application. You can also report the offence to your internet provider, so the sender can be blocked.
4. Block fake paper transfers
If you are a frequent user of electronic banking, you can ask your relationship manager to block your accounts to limit the risk of fake paper transfers. Of course, this does not mean that all transactions are automatically stopped!
However, when BNP Paribas Fortis receives a manual payment order for one of the blocked accounts, our systems will automatically refuse the transaction and inform your relationship manager, who will contact you to verify whether this transaction can indeed be executed.
If you are unable to use your electronic banking channels and you need to switch to paper transactions because of a computer problem, for example, all you need to do is inform your relationship manager.