Natural: St. Augustine Parish Church is susceptible to natural disasters that affect Mendez, such as typhoons, heavy rainfall, and earthquakes. Being an old stone structure, the church is particularly vulnerable to roof leaks, flooding, and structural damage during earthquakes. In addition, because Mendez is located near Tagaytay, the church may also face hazards from a future eruption of Taal Volcano, such as ashfall, which can damage the roof, walls, and surroundings while also posing health risks to parishioners. While no major incidents have been recorded, these hazards continue to pose risks to both the building’s preservation and the safety of parishioners.

Man-Made: There are no documented reports of insurgency or terrorism affecting the church. However, as a public religious site, it may still face risks of crimes such as theft or vandalism during large parish gatherings. The spread of infectious diseases also poses a hazard when many people attend masses and fiestas, since close contact in crowded spaces can increase exposure. While no serious man-made incidents have been recorded, preventive measures remain important to ensure safety.