Bolster Announces $14M Series B led by M12, Microsoft’s Venture Fund


Bolster, a leader in multi-channel phishing protection, has announced a $14 million Series B financing round led by new investor M12, Microsoft’s venture fund. Existing investors Thomvest Ventures, Crosslink Capital, Liberty Global Ventures, Cheyenne Ventures, Cervin Ventures, and Transform Capital also participated, bringing Bolster’s total funding to over $40 million.

According to the Cybersecurity Infrastructure Security Agency, over 90% of all cyberattacks begin with phishing. Additionally, the Anti-Phishing Working Group reported that nearly 43% of all phishing attacks in Q4 2023 targeted social media platforms.

With the aid of AI, attackers are deploying increasingly sophisticated phishing and impersonation attacks across all digital business channels. To combat these growing digital threats, businesses need to leverage leading AI security vendors like Bolster, which supports over 120 customers, including some of the world’s most well-known brands. Bolster uniquely detects and eradicates phishing and impersonation attacks across malicious websites, mobile applications, social media platforms, and messaging tools.