We’ve all found ourselves in a pickle due to a dead smartphone battery, and if not, you’ve been living with a charger perpetually on your person. What is it that kills a smartphone’s battery so quickly?

As it turns out, a lot of things impact your smartphone’s capability to hold and maintain a charge over time. Let’s run through the list of factors that you could encounter, and how you can address them.

Zero-day vulnerabilities are never fun, but this is especially the case with popular devices, like the many that use the Samsung Exynos modem. Google’s Project Zero has discovered 18 such vulnerabilities in these chips, four of which allow for remote code execution. Why should you be concerned about these vulnerabilities and what can you do to minimize your risk?