It would be a shame if there were simultaneous attacks on google's servers with the intention of causing as much damage and inhabilitation. It would be hard, it isn't like they would just release the locations themselves.
It would be a shame if attacks were perpetrated on the highly delicate electrical (and other types of) infrastructure, which is prone to chain reaction crashes which can leave a whole zone electricityless. Admittedly I don't know too much about the topic, but why would I? I've heard the US govt said infrastructure was a security issue and a vulnerability.
It would be a shame if someone cut off the resources of a big, diverse, preferably iconic city, which takes up to weeks to repair and is feasibly a three man operation.
It would be a shame if a reactor was sent into meltdown by a rogue character.
It would be a shame if a balaclava-covered man ran up to a system pig and stabbed him in the neck, especially if it's the shareholder or owner of a complany which promotes the downfall of the Race. It would be a shame if one of the pop culture icons, be it singers or actors, got killed in the same way. Ones which have made statements or acted against the Race might be much more in danger. What if Marshall "I'm ashamed of being white" Mathers a.k.a. Eminem got stabbed, or home invaded and killed? What if Sadiq "part and parcel" Khan got killed? Celebrities have been killed like that, remember Manson?
What if someone put a bomb in the middle of the Concress' chamber?
One would just need to walk up to them, knife half-concealed either in the pocket or behind a leg, and send a powerful rocket through the stomach when near enough. Nobody expects and nobody can predict that. A political elite in germany got assaulted like that while out eating. Remember, these people go outside too.
ANFO is a cheap to make, mining industry grade, stable explosive, to make it it's just need amonium nitrate, a common fertilizer sold in industrial quantities to farmers, and fuel oil, mixed in 10:1 proportion. This is all public information. Making a remote controlled detonator is easy, just repurpose an old cellphone. Making a car bomb trap is easy too. The scariest part is that a would be terrorist doesn't need any of it, just a blunt object and a will.