Microbiologically influenced corrosion (MIC) cost the pipeline industry millions of dollars every year. Once these organisms become active, they can rapidly corrode steel and most metals at rates more than 50 times faster than that of corrosion of seawater. The sulfate reducing bacteria (SRB) with their ability to withstand in harsh environments have been of great concern to oil production companies for many years. This paper addresses some of the biggest challenges offered by MIC corrosion and proposes a new technique for corrosion prevention in a microbially vulnerable environment. Experimental work was carried out to observe the effect of SRB on inorganic zinc coatings (IOZ) with and without topcoatings. The bio-corrosion mechanism as well as the bacterial growth was identified using a Scanning Electron Microscope and a Computer Image Analyzer.