They certainly do take iPhone security seriously but Google has really done alot more in this area. I’ve seen metrics where Android has significantly less vulnerabilities than iOS. Plus I’ve read multiple articles where Mobile Security vendors have said they get far more exploits submitted for iOS than for Android.

Hence the pay much more for Android exploits they work then for iOS exploits because they are more common.

Note that these are companies which specialise in hacking phones for government agency use, so it’s not something that will affect everyone. But in general iOS has more holes.

A while back Google’s Security team found an iOS hole, told Apple, who never fixed it, until Google eventually made it public and only then did Apple agree to fix it. So they don’t seem to be in a hurry over at Apple to fix holes.