A CPA's defenses to liability under Section 11 of the Securities Act of 1933 do not include which of the following? Securities Law & Liabilities of CPA's A CPA's defenses to liability under Section 11 of the Securities Act of 1933 do not include which of the following? The plaintiff was unaware of the misstatement or omission in a registration statement. Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+