Dear Sparta.eu security team,

I am Trung Nguyen, the Founder/CEO of CyStack, an innovative cybersecurity company in Hanoi, Vietnam. While reviewing your security guidelines at https://sparta.eu/.well-known/security.txt, I came across your email and wanted to reach out with an exciting opportunity. Please accept my apologies if this message causes any inconvenience.

We have developed WhiteHub, one of the most prominent bug bounty platforms in Southeast Asia, with over 3000 active security researchers from across the region, and we believe it could be a valuable addition to your security strategy. WhiteHub offers an intuitive bug bounty platform that streamlines vulnerability reporting, classification, prioritization, and task assignment. By leveraging WhiteHub's capabilities, you can efficiently manage and collaborate on incoming findings, ensuring that your team can promptly address critical vulnerabilities in a professional dashboard instead of email as it may now. You can find more information on the key features and offerings of WhiteHub at https://s.whitehub.net/resources/docs/whitehub_introduction.pdf.

We are pleased to extend an exclusive invitation for you to use WhiteHub at absolutely NO COST. We offer a complimentary listing of your programs on WhiteHub, and we only charge a 25% fee per bug rewarded to researchers if you choose to provide monetary bounties. If you prefer non-monetary rewards, there won't be any charges at all.

If you are interested in exploring the possibilities with WhiteHub, kindly contact me at trung@whitehub.net or trungnh@cystack.net. I would be delighted to create a customized VDP program or bug bounty program tailored to your organization's unique needs.

Thank you for considering our invitation. We look forward to hearing from you and supporting your mission to safeguard your digital assets from potential threats.

Best regards,
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