Manufacturers are notorious for warning the owners of their products that using anything other than their own parts and accessories will cause the end of the known universe. This is not only true of camera makers, it is true of electronics manufacturers in general. It is true of automobile manufacturers. It is true of appliance manufacturers. It is true of rechargeable battery makers ("Do not use with any other charger than the one supplied with our product").
Yet in many cases the "official" OEM parts and accessories are made by outside companies under contract to the brand under which they are sold. Those same suppliers also sell similar or even identical products (other than the branding labels) under their own nameplate or to other companies who market them. There is often no functional difference between the OEM and third party products.
An USB cable is fairly straightforward and there is an accepted standard in place for the design and performance of such a cable with a micro-usb (USB 2.0 micro-B 5-pin) interface at one end and a normal USB (USB 2.0 Type A) connector at the other. Ferrite traps may or may not be added to shield the cable from interference from other nearby electrical devices. In the case of only using the cable to charge a battery, the ferrite trap is an unnecessary addition.
You can use any cable compliant with the USB standard and with the needed connectors to charge the battery of your camera. Just be sure it is plugged into a standard USB 2.0 port that supplies no more than the standard 5V at 0.5 Amps. This is true whether using the official Canon OEM part IFC-600PCU or a generic cable.
Where one might need to be a little more careful is in the case of a charger that transforms wall current to a specific DC voltage and amperage. In such a case it would be prudent to insure that a third party charger is supplying the correct voltage, current, and polarity to the device, such as a camera.