Strong, WordPress is, otherwise it would have been breached long ago. These three attackers did a brute force login attack on me today. This is not the first and will certainly not be the last. While I can track down the IP and ISP, and ban them, their origins I will never know. This is the murky world of the internet, and it is worldwide.
41.76.123.243: 41.76.123.0 – 41.76.123.255 WIFLY GA GABON has tried security hacks on my site before, 6 attempts