If you had received suspicious emails with attachment(s), do NOT open any of them as such attachments might harm your computer and even cause data loss. If you are not sure whether these emails are legitimate, always verify with the sender via phone call or other reliable methods. Please note that some emails will use the recipient's email address for the "Sent from" field to get through spam filters. 

Malicious emails might pretend to be sent from the recipient

The attachments might be harmful to your computer and files

We had received many requests regarding this matter in the past two weeks. As shown in the diagrams above, these emails might have one or more of the following characteristics:

1. In order to get through spam filters, they might use the recipient's email address for the sender's address;
2. Their attachments contain virus and/or malicious contents;
3. Their subjects and attachments tried to mislead the receiver to believe that the attached files are fax, invoice or other important documents;
4. If such attachments were opened, it could damage your computer or lock its files. Victims could then become a target of blackmail;

While these emails will not cause any damages to the websites 5U Website developed, we still want to remind our customers to keep an eye on this dangerous matter. We will work as usual to ensure all websites we managed are safe and function normally.