(a) Rights under Articles 3, 7, and 8 not limited. — This Article does not limit the rights of a holder in due course of a negotiable instrument, a holder to which a negotiable document of title has been duly negotiated, or a protected purchaser of a security. These holders or purchasers take priority over an earlier security interest, even if perfected, to the extent provided in Articles 3, 7, and 8.
(b) Protection under Article 8. — This Article does not limit the rights of or impose liability on a person to the extent that the person is protected against the assertion of an adverse claim under Article 8.
(c) Filing not notice. — Filing under this Article does not constitute notice of a claim or defense to the holders, or purchasers, or persons described in subsections (a) and (b).