Black Friday & Cyber Monday Cyber Threat Alert
This year, Black Friday promises to be a huge win for ecommerce with sales increasing by 15.8% to $10.42 billion as per a new Insider Intelligence | eMarketer report. Cyber Monday is expected to be even bigger at $12.12 billion, up 12.4% from last year.
With all that retail buying, however, cyber criminals will also ramp up their malicious activity. In the midst of the holiday buying frenzy, phishing attacks can increase by up to 400%.
Who can forget Emotet? Until it was recently disrupted by law enforcement and judicial authorities, Emotet was a highly proliferative worldwide Trojan that functioned as a downloader or malware dropper. Emotet botnets dropped Trickbot to deliver ransomware payloads against some victims and Qakbot Trojans to steal banking credentials and data from other targets.
While it has since been dismantled, threats like Emotet-style spear phishing and card skimmers will be unleashed during this holiday shopping season.
What is Spear Phishing?
Spear phishing is an email attack that targets a specific individual or organization. The intent is often to exfiltrate data (credentials, credit card numbers) for malicious purposes. Threat actors may also use phishing tactics to install ransomware onto a victim’s PC.
A typical spear phishing attempt takes shape as a highly convincing (but fake) email. Even upon close inspection, the email looks authentic with logos and fonts that match Amazon, PayPal, WalMart, your bank, or any other brand.
The phishing email contains a link that redirects you to a fake website with malware ready and waiting. For example, the email may claim that you have an account problem. The link then directs you to the bogus site where you “login”, thus giving away your username and password.
Later, threat actors can then either sell your data or access your account to make unauthorized purchases or empty your bank account.
Other tactics, more specific to the holiday season, might be fake discounts or gift card offers that take you to a rogue site. There you may be asked to login or click on a link that enables malware to be downloaded to your PC.
Some ways to avoid being a victim of spear phishing attacks are;
- Examine URLs closely. If you hover your mouse over the link, you should be able to see it on your browser before clicking.
- Never click on an email link, especially one that suggests you have to login to an account. Always login directly from the company website.
- Examine who is sending the email closely. The email may appear to be from a trusted source. But upon closer inspection, the sender address is typically odd looking or very long containing random characters and numbers.
- Don’t click on or open documents, especially ones that promise discounts or rewards.
- Only download apps from official app stores.
Holiday Magecart Skimming Attacks
Another devious trick used by cyber criminals is Magecart data skimming. In these attacks, authentic company websites get infected and are then used to steal data. Magecart is a cybercrime syndicate with dozens of subgroups that specialize in cyberattacks involving digital credit card skimming theft.
The ticket-selling giant eventually discovered the malware on a customer chat function for its websites. The infectious code was able to access a user’s name, address, email address, telephone number, payment details and Ticketmaster login details.
Eventually, Ticketmaster’s UK division was fined $1.65 million by the UK Information Commissioner’s Office (ICO) due to the data breach that impacted 9.4 million customers. The ICO determined that Ticketmaster failed to have appropriate security measures in place to thwart the attack.
More Activity, More Risk
Ecommerce was already booming before the COVID-19 crisis. But the pandemic drove even more consumers online, contributing an additional $105 billion in U.S. online revenue in 2020. As mentioned earlier, this holiday season promises to be even bigger than last year.
As more people spend time online, they will be exposed to threats such as spear phishing and skimming scams. With the larger attack surface, we can anticipate a larger number of attacks.
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